Merge branch 'main' into nv/exec-stats

<!--A few plain bullets saying what changed and why, for a reviewer
skimming it - not a wall of text, not a restatement of the diff, not
generated boilerplate.-->
#### Description

- Adds saved views to the AI observability explorer.
- New `ai_observability` preference slice. Columns are stored per panel
in localStorage (`AI_OBSERVABILITY_OPTIONS`); the slice holds only the
open panel's `{ columns, panelType }`. Only the Traces tab keeps columns
today.
- The Traces tab reads columns through `useOptionsMenu`, like the logs
and traces lists. Defaults are a fixed list
(`TRACE_VIEW_DEFAULT_COLUMNS`) matching the backend's trace aggregates,
so the table no longer waits for the keys API.
- The URL carries the open panel's columns in `options.selectColumns`;
logs and traces ignore it on the AI explorer route.
- Fixes saved views opening on the wrong tab: the explorer now reads the
tab from the URL For AI View

<!--Reference issues using `Closes #issue-number` to enable automatic
closure on merge. -->
#### Issues closed by this PR

<!--If applicable, include screenshots or screen recordings that clearly
show the behavior before the change and the result after the change. -->
#### Screenshots / Screen Recordings



https://github.com/user-attachments/assets/daab1db3-b8df-435a-8252-d6bb35a86e99


<!--Anything reviewers should keep in mind while reviewing -->
#### Additional Information

- Review commit by commit: preferences → saved views → trace view →
explorer wiring → tab fix → discard and loading fixes. Each commit
builds.
- Columns picked on the Traces tab before this PR were kept in the
table's column store; they are ignored now, so those users see the
defaults once. Column widths are kept.
- The AI Explorer story is not updated in this PR.
- SB Shot -
https://claude.ai/artifact/R77CFZKS71pSxNLV4ZhpxY?sk=dM6jybUP456zVTcW9xrz8Q
- Check to have a summary of comment raised and closed with greptile
https://github.com/SigNoz/signoz/pull/13297#issuecomment-6508458226

---------

Co-authored-by: Gaurav Tewari <tewarig@users.noreply.github.com>

.github/workflows/e2eci.yaml

@@ -67,7 +67,7 @@ jobs:
       matrix:
         project:
           - chromium
-        shard: [1, 2, 3, 4]
+        shard: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
     needs: changes
     if: needs.changes.outputs.e2e == 'true'
     runs-on: ubuntu-latest
@@ -162,7 +162,7 @@ jobs:
       - name: playwright-test
         run: |
           cd tests/e2e && \
-            pnpm playwright test --project=${{ matrix.project }} --shard=${{ matrix.shard }}/4
+            pnpm playwright test --project=${{ matrix.project }} --shard=${{ matrix.shard }}/10
       - name: teardown-stack
         if: always()
         run: |

docs/api/openapi.yml

@@ -4377,8 +4377,7 @@ components:
           description: The dashboard title and description.
         duration:
           description: The default time range, as a Prometheus duration such as 1h
-            or 7d. The UI opens the dashboard on it, rounded up to whole minutes,
-            when neither the URL nor the viewer's last pick sets a time range.
+            or 7d. Stored, but not applied by the UI.
           type: string
         layouts:
           description: The Grid layouts that place panels, at most 500. Each panel
@@ -28288,6 +28287,12 @@ paths:
               schema:
                 $ref: '#/components/schemas/RenderErrorResponse'
           description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
         "500":
           content:
             application/json:
@@ -28296,9 +28301,15 @@ paths:
           description: Internal Server Error
       security:
       - api_key:
-        - VIEWER
+        - rule:read
+        - logs-field:list
+        - traces-field:list
+        - metrics-field:list
       - tokenizer:
-        - VIEWER
+        - rule:read
+        - logs-field:list
+        - traces-field:list
+        - metrics-field:list
       summary: Get rule history filter keys
       tags:
       - rules
@@ -28466,6 +28477,12 @@ paths:
               schema:
                 $ref: '#/components/schemas/RenderErrorResponse'
           description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
         "500":
           content:
             application/json:
@@ -28474,9 +28491,15 @@ paths:
           description: Internal Server Error
       security:
       - api_key:
-        - VIEWER
+        - rule:read
+        - logs-field:read
+        - traces-field:read
+        - metrics-field:read
       - tokenizer:
-        - VIEWER
+        - rule:read
+        - logs-field:read
+        - traces-field:read
+        - metrics-field:read
       summary: Get rule history filter values
       tags:
       - rules
@@ -28549,9 +28572,9 @@ paths:
           description: Internal Server Error
       security:
       - api_key:
-        - VIEWER
+        - rule:read
       - tokenizer:
-        - VIEWER
+        - rule:read
       summary: Get rule overall status timeline
       tags:
       - rules
@@ -28621,9 +28644,9 @@ paths:
           description: Internal Server Error
       security:
       - api_key:
-        - VIEWER
+        - rule:read
       - tokenizer:
-        - VIEWER
+        - rule:read
       summary: Get rule history stats
       tags:
       - rules
@@ -28705,6 +28728,12 @@ paths:
               schema:
                 $ref: '#/components/schemas/RenderErrorResponse'
           description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
         "500":
           content:
             application/json:
@@ -28713,9 +28742,19 @@ paths:
           description: Internal Server Error
       security:
       - api_key:
-        - VIEWER
+        - rule:read
+        - logs:read
+        - traces:read
+        - metrics:read
+        - audit-logs:read
+        - meter-metrics:read
       - tokenizer:
-        - VIEWER
+        - rule:read
+        - logs:read
+        - traces:read
+        - metrics:read
+        - audit-logs:read
+        - meter-metrics:read
       summary: Get rule history timeline
       tags:
       - rules
@@ -28780,6 +28819,12 @@ paths:
               schema:
                 $ref: '#/components/schemas/RenderErrorResponse'
           description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
         "500":
           content:
             application/json:
@@ -28788,9 +28833,19 @@ paths:
           description: Internal Server Error
       security:
       - api_key:
-        - VIEWER
+        - rule:read
+        - logs:read
+        - traces:read
+        - metrics:read
+        - audit-logs:read
+        - meter-metrics:read
       - tokenizer:
-        - VIEWER
+        - rule:read
+        - logs:read
+        - traces:read
+        - metrics:read
+        - audit-logs:read
+        - meter-metrics:read
       summary: Get top contributors to rule firing
       tags:
       - rules

frontend/src/api/generated/services/sigNoz.schemas.ts

@@ -7704,7 +7704,7 @@ export interface DashboardtypesDashboardSpecDTO {
 	display: DashboardtypesDisplayDTO;
 	/**
 	 * @type string
-	 * @description The default time range, as a Prometheus duration such as 1h or 7d. The UI opens the dashboard on it, rounded up to whole minutes, when neither the URL nor the viewer's last pick sets a time range.
+	 * @description The default time range, as a Prometheus duration such as 1h or 7d. Stored, but not applied by the UI.
 	 */
 	duration?: string;
 	/**

frontend/src/components/LogsFormatOptionsMenu/LogsFormatOptionsMenu.styles.scss

@@ -18,71 +18,51 @@
 			right: -2px;
 			width: 240px;
 
+			[data-format-menu='back'],
+			[data-format-menu='font-option'],
+			[data-format-menu='font-size'],
+			[data-format-menu='edit-columns'] {
+				--button-justify-content: flex-start;
+			}
+
+			[data-format-menu='font-option'],
+			[data-format-menu='font-size'],
+			[data-format-menu='edit-columns'] {
+				--button-label-min-width: 100%;
+				--button-font-size: 13px;
+				--button-variant-link-font-weight: 400;
+				--button-size-line-height: 20px;
+			}
+
+			[data-format-menu='back'] {
+				text-transform: uppercase;
+			}
+
+			[data-format-menu='font-option'],
+			[data-format-menu='font-size'] {
+				text-transform: capitalize;
+			}
+
+			.menu-row {
+				display: flex;
+				align-items: center;
+				justify-content: space-between;
+				gap: 8px;
+			}
+
 			.font-size-dropdown {
 				display: flex;
 				flex-direction: column;
+				gap: 4px;
+				padding: 8px 12px;
 
-				.back-btn {
-					display: flex;
-					align-items: center;
-					gap: 4px;
-					padding: 12px;
-					border: none !important;
-					box-shadow: none !important;
-
-					.icon {
-						flex-shrink: 0;
-					}
-
-					.text {
-						color: var(--l1-foreground);
-						font-family: Inter;
-						font-size: 11px;
-						font-style: normal;
-						font-weight: 500;
-						line-height: 20px; /* 142.857% */
-						letter-spacing: 0.14px;
-						text-transform: uppercase;
-					}
-				}
-
-				.back-btn:hover {
-					background-color: unset !important;
+				.horizontal-line {
+					margin-inline: -12px;
 				}
 
 				.content {
 					display: flex;
 					flex-direction: column;
-					.option-btn {
-						display: flex;
-						align-items: center;
-						padding: 12px;
-						border: none !important;
-						box-shadow: none !important;
-						justify-content: space-between;
-
-						.icon {
-							flex-shrink: 0;
-						}
-						.text {
-							color: var(--l2-foreground);
-							font-family: Inter;
-							font-size: 13px;
-							font-style: normal;
-							font-weight: 400;
-							line-height: normal; /* 142.857% */
-							letter-spacing: 0.14px;
-							text-transform: capitalize;
-						}
-
-						.text:hover {
-							color: var(--l2-foreground);
-						}
-					}
-
-					.option-btn:hover {
-						background-color: unset !important;
-					}
 				}
 			}
 
@@ -102,31 +82,6 @@
 					letter-spacing: 0.88px;
 					text-transform: uppercase;
 				}
-
-				.value {
-					display: flex;
-					height: 20px;
-					padding: 4px 0px;
-					justify-content: space-between;
-					align-items: center;
-					border: none !important;
-					.font-value {
-						color: var(--l2-foreground);
-						font-family: Inter;
-						font-size: 13px;
-						font-style: normal;
-						font-weight: 400;
-						line-height: normal;
-						letter-spacing: 0.14px;
-						text-transform: capitalize;
-					}
-					.icon {
-					}
-				}
-
-				.value:hover {
-					background-color: unset !important;
-				}
 			}
 
 			.menu-container {
@@ -198,90 +153,10 @@
 						cursor: pointer;
 					}
 				}
-
-				.max-lines-per-row-input {
-					display: flex;
-
-					.ant-input-number-handler-wrap {
-						display: none;
-					}
-
-					.ant-input-number {
-						min-width: 36px;
-						width: auto;
-						border-right: none;
-						border-left: none;
-						border-top: 1px solid var(--l1-border);
-						border-bottom: 1px solid var(--l1-border);
-						text-align: center;
-						height: 26px;
-						border-radius: 0;
-
-						&:active,
-						&:focus {
-							border: none;
-							box-shadow: none;
-						}
-					}
-
-					.ant-input-number-focused {
-						box-shadow: none !important;
-					}
-
-					.ant-input-number-input-wrap {
-						input {
-							text-align: center;
-							font-size: 13px;
-
-							&:active,
-							&:focus {
-								border: none;
-							}
-						}
-
-						&:active,
-						&:focus {
-							border: none;
-						}
-					}
-
-					.periscope-btn {
-						box-shadow: none;
-						padding: 6px 12px;
-						height: 26px;
-
-						border-radius: 0px 1px 1px 0px;
-						background: var(--l3-background);
-					}
-				}
 			}
 
 			.edit-columns-container {
 				padding: 12px;
-
-				.edit-columns-btn {
-					display: flex;
-					width: 100%;
-					height: 20px;
-					padding: 4px 0px;
-					justify-content: space-between;
-					align-items: center;
-					border: none !important;
-
-					.edit-columns-text {
-						color: var(--l2-foreground);
-						font-family: Inter;
-						font-size: 13px;
-						font-style: normal;
-						font-weight: 400;
-						line-height: normal;
-						letter-spacing: 0.14px;
-					}
-				}
-
-				.edit-columns-btn:hover {
-					background-color: unset !important;
-				}
 			}
 
 			.add-new-column-container {

frontend/src/components/LogsFormatOptionsMenu/LogsFormatOptionsMenu.tsx

@@ -1,6 +1,7 @@
 import { useCallback, useEffect, useState } from 'react';
-import { Button, InputNumber, Popover, Tooltip } from 'antd';
-import { Typography } from '@signozhq/ui/typography';
+import { Popover, Tooltip } from 'antd';
+import { Button } from '@signozhq/ui/button';
+import { InputNumber } from '@signozhq/ui/input-number';
 import cx from 'classnames';
 import {
 	LogViewMode,
@@ -11,13 +12,15 @@ import {
 	Check,
 	ChevronLeft,
 	ChevronRight,
-	Minus,
-	Plus,
 	SlidersVertical,
 } from '@signozhq/icons';
 
 import './LogsFormatOptionsMenu.styles.scss';
 
+const MIN_LINES_PER_ROW = 1;
+const MAX_LINES_PER_ROW = 10;
+const FONT_SIZES = [FontSize.SMALL, FontSize.MEDIUM, FontSize.LARGE];
+
 interface LogsFormatOptionsMenuProps {
 	items: any;
 	selectedOptionFormat: any;
@@ -62,25 +65,11 @@ function OptionsMenu({
 		onChange(key);
 	};
 
-	const incrementMaxLinesPerRow = (): void => {
-		if (maxLinesPerRow < 10) {
-			setMaxLinesPerRow(maxLinesPerRow + 1);
-		}
-	};
-
-	const decrementMaxLinesPerRow = (): void => {
-		if (maxLinesPerRow > 1) {
-			setMaxLinesPerRow(maxLinesPerRow - 1);
-		}
-	};
-
-	const handleLinesPerRowChange = (maxLinesPerRow: number | null): void => {
-		if (
-			maxLinesPerRow &&
-			Number.isInteger(maxLinesNumber) &&
-			maxLinesPerRow > 1
-		) {
-			setMaxLinesPerRow(maxLinesPerRow);
+	const handleLinesPerRowChange = (value: number | null): void => {
+		if (value !== null) {
+			setMaxLinesPerRow(
+				Math.min(Math.max(value, MIN_LINES_PER_ROW), MAX_LINES_PER_ROW),
+			);
 		}
 	};
 
@@ -111,51 +100,36 @@ function OptionsMenu({
 			{isFontSizeOptionsOpen ? (
 				<div className="font-size-dropdown">
 					<Button
+						variant="link"
+						color="secondary"
+						size="sm"
+						width="100%"
+						data-format-menu="back"
+						testId="font-size-back"
+						prefix={<ChevronLeft size={14} />}
 						onClick={(): void => setIsFontSizeOptionsOpen(false)}
-						className="back-btn"
-						type="text"
 					>
-						<ChevronLeft size={14} className="icon" />
-						<Typography.Text className="text">Select font size</Typography.Text>
+						Select font size
 					</Button>
 					<div className="horizontal-line" />
 					<div className="content">
-						<Button
-							onClick={(): void => {
-								setFontSizeValue(FontSize.SMALL);
-							}}
-							className="option-btn"
-							type="text"
-						>
-							<Typography.Text className="text">{FontSize.SMALL}</Typography.Text>
-							{fontSizeValue === FontSize.SMALL && (
-								<Check size={14} className="icon" />
-							)}
-						</Button>
-						<Button
-							onClick={(): void => {
-								setFontSizeValue(FontSize.MEDIUM);
-							}}
-							className="option-btn"
-							type="text"
-						>
-							<Typography.Text className="text">{FontSize.MEDIUM}</Typography.Text>
-							{fontSizeValue === FontSize.MEDIUM && (
-								<Check size={14} className="icon" />
-							)}
-						</Button>
-						<Button
-							onClick={(): void => {
-								setFontSizeValue(FontSize.LARGE);
-							}}
-							className="option-btn"
-							type="text"
-						>
-							<Typography.Text className="text">{FontSize.LARGE}</Typography.Text>
-							{fontSizeValue === FontSize.LARGE && (
-								<Check size={14} className="icon" />
-							)}
-						</Button>
+						{FONT_SIZES.map((size) => (
+							<Button
+								key={size}
+								variant="link"
+								color="secondary"
+								size="sm"
+								width="100%"
+								data-format-menu="font-option"
+								testId={`font-size-option-${size}`}
+								onClick={(): void => setFontSizeValue(size)}
+							>
+								<span className="menu-row">
+									{size}
+									{fontSizeValue === size && <Check size={14} />}
+								</span>
+							</Button>
+						))}
 					</div>
 				</div>
 			) : (
@@ -163,14 +137,20 @@ function OptionsMenu({
 					<div className="font-size-container">
 						<div className="title">Font Size</div>
 						<Button
-							className="value"
-							type="text"
+							variant="link"
+							color="secondary"
+							size="sm"
+							width="100%"
+							data-format-menu="font-size"
+							testId="font-size-select"
 							onClick={(): void => {
 								setIsFontSizeOptionsOpen(true);
 							}}
 						>
-							<Typography.Text className="font-value">{fontSizeValue}</Typography.Text>
-							<ChevronRight size={14} className="icon" />
+							<span className="menu-row">
+								{fontSizeValue}
+								<ChevronRight size={14} />
+							</span>
 						</Button>
 					</div>
 					<div className="horizontal-line" />
@@ -200,30 +180,20 @@ function OptionsMenu({
 							<div className="horizontal-line" />
 							<div className="max-lines-per-row">
 								<div className="title"> max lines per row </div>
-								<div className="raw-format max-lines-per-row-input">
-									<button
-										type="button"
-										className="periscope-btn"
-										onClick={decrementMaxLinesPerRow}
-									>
-										{' '}
-										<Minus size={12} />{' '}
-									</button>
-									<InputNumber
-										min={1}
-										max={10}
-										value={maxLinesPerRow}
-										onChange={handleLinesPerRowChange}
-									/>
-									<button
-										type="button"
-										className="periscope-btn"
-										onClick={incrementMaxLinesPerRow}
-									>
-										{' '}
-										<Plus size={12} />{' '}
-									</button>
-								</div>
+								<InputNumber
+									controls
+									mode="spinner"
+									size="small"
+									min={MIN_LINES_PER_ROW}
+									max={MAX_LINES_PER_ROW}
+									precision={0}
+									value={maxLinesPerRow}
+									onChange={handleLinesPerRowChange}
+									aria-label="Max lines per row"
+									decrementAriaLabel="Fewer lines per row"
+									incrementAriaLabel="More lines per row"
+									testId="max-lines-per-row"
+								/>
 							</div>
 						</>
 					)}
@@ -233,15 +203,18 @@ function OptionsMenu({
 							<div className="horizontal-line" />
 							<div className="edit-columns-container">
 								<Button
-									className="edit-columns-btn"
-									type="text"
+									variant="link"
+									color="secondary"
+									size="sm"
+									width="100%"
+									data-format-menu="edit-columns"
 									onClick={handleEditColumns}
-									data-testid="periscope-btn-edit-columns"
+									testId="periscope-btn-edit-columns"
 								>
-									<Typography.Text className="edit-columns-text">
+									<span className="menu-row">
 										Edit columns
-									</Typography.Text>
-									<ChevronRight size={14} className="icon" />
+										<ChevronRight size={14} />
+									</span>
 								</Button>
 							</div>
 						</>
@@ -280,10 +253,15 @@ function LogsFormatOptionsMenu({
 		>
 			<Tooltip title="Options">
 				<Button
-					className="periscope-btn ghost"
-					icon={<SlidersVertical size="md" />}
-					data-testid="periscope-btn-format-options"
-				/>
+					variant="ghost"
+					color="secondary"
+					size="sm"
+					icon
+					aria-label="Options"
+					testId="periscope-btn-format-options"
+				>
+					<SlidersVertical size={14} />
+				</Button>
 			</Tooltip>
 		</Popover>
 	);

frontend/src/components/LogsFormatOptionsMenu/__tests__/LogsFormatOptionsMenu.test.tsx

@@ -1,5 +1,11 @@
 import { FontSize } from 'container/OptionsMenu/types';
-import { fireEvent, render, waitFor } from 'tests/test-utils';
+import {
+	fireEvent,
+	render,
+	screen,
+	userEvent,
+	waitFor,
+} from 'tests/test-utils';
 
 import LogsFormatOptionsMenu from '../LogsFormatOptionsMenu';
 
@@ -107,18 +113,12 @@ describe('LogsFormatOptionsMenu (unit)', () => {
 	});
 
 	it('increments max-lines and calls onChange', async () => {
-		const { maxLinesOnChange } = setup();
+		const { maxLinesOnChange, getByTestId } = setup();
 
 		// Increment max lines
-		const input = document.querySelector(
-			'.max-lines-per-row-input input',
-		) as HTMLInputElement;
+		const input = getByTestId('max-lines-per-row') as HTMLInputElement;
 		const initial = Number(input.value);
-		const buttons = document.querySelectorAll(
-			'.max-lines-per-row-input .periscope-btn',
-		);
-		const incrementBtn = buttons[1] as HTMLElement;
-		fireEvent.click(incrementBtn);
+		fireEvent.click(screen.getByRole('button', { name: 'More lines per row' }));
 
 		await waitFor(() => {
 			expect(Number(input.value)).toBe(initial + 1);
@@ -128,28 +128,47 @@ describe('LogsFormatOptionsMenu (unit)', () => {
 		});
 	});
 
+	it('clamps a typed max-lines value to 10', async () => {
+		const { maxLinesOnChange, getByTestId } = setup();
+		const input = getByTestId('max-lines-per-row') as HTMLInputElement;
+		const user = userEvent.setup();
+
+		await user.clear(input);
+		await user.type(input, '15');
+		await user.tab();
+
+		await waitFor(() => expect(input.value).toBe('10'));
+		expect(maxLinesOnChange).toHaveBeenLastCalledWith(10);
+	});
+
+	it('stops max-lines at 10', async () => {
+		const { getByTestId } = setup();
+		const input = getByTestId('max-lines-per-row') as HTMLInputElement;
+		const increment = screen.getByRole('button', { name: 'More lines per row' });
+		const user = userEvent.setup();
+
+		for (let i = 0; i < 12; i++) {
+			await user.click(increment);
+		}
+
+		await waitFor(() => expect(input.value).toBe('10'));
+	});
+
 	it('changes font size to MEDIUM and calls onChange', async () => {
-		const { fontSizeOnChange } = setup();
+		const { fontSizeOnChange, getByTestId } = setup();
 		// Open font dropdown
-		const fontButton = document.querySelector(
-			'.font-size-container .value',
-		) as HTMLElement;
-		fireEvent.click(fontButton);
+		fireEvent.click(getByTestId('font-size-select'));
 
 		// Choose MEDIUM
-		const optionButtons = Array.from(
-			document.querySelectorAll('.font-size-dropdown .option-btn'),
-		);
-		const mediumBtn = optionButtons[1] as HTMLElement;
-		fireEvent.click(mediumBtn);
+		fireEvent.click(getByTestId(`font-size-option-${FontSize.MEDIUM}`));
 
 		await waitFor(() => {
 			expect(
-				document.querySelectorAll('.font-size-dropdown .option-btn .icon'),
-			).toHaveLength(1);
-			expect(
-				(optionButtons[1] as Element).querySelector('.icon'),
+				getByTestId(`font-size-option-${FontSize.MEDIUM}`).querySelector('svg'),
 			).toBeInTheDocument();
+			expect(
+				getByTestId(`font-size-option-${FontSize.SMALL}`).querySelector('svg'),
+			).not.toBeInTheDocument();
 		});
 		await waitFor(() => {
 			expect(fontSizeOnChange).toHaveBeenCalledWith(FontSize.MEDIUM);

frontend/src/constants/localStorage.ts

@@ -13,6 +13,7 @@ export enum LOCALSTORAGE {
 	TRACES_LIST_COLUMNS = 'TRACES_LIST_COLUMNS',
 	TRACES_VIEW_COLUMNS = 'TRACES_VIEW_COLUMNS',
 	AI_OBSERVABILITY_TRACE_VIEW_COLUMNS = 'AI_OBSERVABILITY_TRACE_VIEW_COLUMNS',
+	AI_OBSERVABILITY_PANEL_COLUMNS = 'AI_OBSERVABILITY_PANEL_COLUMNS',
 	AI_OBSERVABILITY_LIST_COLUMNS = 'AI_OBSERVABILITY_LIST_COLUMNS',
 	LOGS_LIST_COLUMNS = 'LOGS_LIST_COLUMNS',
 	LOGS_LIST_COLUMN_SIZING = 'LOGS_LIST_COLUMN_SIZING',

frontend/src/container/AIAssistant/components/ActionsSection/ActionsSection.tsx

@@ -48,18 +48,19 @@ import { AIAssistantEvents, SuggestedPromptCategory } from '../../events';
 import { useAIAssistantAnalyticsContext } from '../../hooks/useAIAssistantAnalyticsContext';
 import { useAIAssistantStore } from '../../store/useAIAssistantStore';
 
+import { getOpenResourceTarget } from './utils/getOpenResourceTarget';
 import {
 	getPanelTypeForRequestType,
 	requestTypeFromActionQuery,
 } from './utils/getPanelTypeForRequestType';
+import { isOnResourcePage } from './utils/isOnResourcePage';
 import { openSavedViewByKey } from './utils/openSavedView';
 import {
 	isSavedViewOpenAction,
-	resolveOpenResourceType,
 	resolveResourceId,
 	resolveSavedViewSourceHint,
 } from './utils/resolveOpenResource';
-import { ResourceType, resourceRoute } from './utils/resourceRoute';
+import { ResourceType } from './utils/resourceRoute';
 
 import styles from './ActionsSection.module.scss';
 
@@ -397,7 +398,7 @@ export default function ActionsSection({
 	actions,
 	messageId,
 }: ActionsSectionProps): JSX.Element | null {
-	const { pathname } = useAppLocation();
+	const { pathname, search } = useAppLocation();
 	const sendMessage = useAIAssistantStore((s) => s.sendMessage);
 	const { threadId, page, mode } = useAIAssistantAnalyticsContext();
 	const { redirectWithQueryBuilderData, handleSetQueryData } = useQueryBuilder();
@@ -493,23 +494,17 @@ export default function ActionsSection({
 			return;
 		}
 
-		const resourceType = resolveOpenResourceType(action);
-		const resourceId = resolveResourceId(action);
-		if (!resourceType || !resourceId) {
-			return;
-		}
-
-		const path = resourceRoute(resourceType, resourceId);
-		if (!path) {
+		const target = getOpenResourceTarget(action);
+		if (!target) {
 			return;
 		}
 		void logEvent(AIAssistantEvents.ResourceOpened, {
 			threadId,
 			messageId,
-			targetModule: targetModuleForResource(resourceType),
-			resourceId,
+			targetModule: targetModuleForResource(target.resourceType),
+			resourceId: target.resourceId,
 		});
-		navigate(path);
+		navigate(target.path);
 	};
 
 	const handleClick = (key: string, action: MessageActionDTO): void => {
@@ -607,6 +602,10 @@ export default function ActionsSection({
 					// is still surfaced visually via the suffix pill below.
 
 					const tooltip = isError ? result.error : (action.tooltip ?? undefined);
+					const openTarget = getOpenResourceTarget(action);
+					const isViewingResource =
+						openTarget !== null &&
+						isOnResourcePage(openTarget.path, { pathname, search });
 
 					let icon: JSX.Element;
 					if (isSuccess) {
@@ -619,12 +618,16 @@ export default function ActionsSection({
 
 					const chip = (
 						<Button
-							disabledTooltip="This action already ran"
+							disabledTooltip={
+								isViewingResource
+									? "You're already viewing this page"
+									: 'This action already ran'
+							}
 							variant="outlined"
 							color="secondary"
 							size="sm"
 							onClick={(): void => handleClick(key, action)}
-							disabled={isSuccess}
+							disabled={isSuccess || isViewingResource}
 							loading={isLoading}
 							aria-label={action.label}
 							testId={`ai-action-chip-${action.kind}`}

frontend/src/container/AIAssistant/components/ActionsSection/__tests__/ActionsSection.openResource.test.tsx

@@ -0,0 +1,99 @@
+import {
+	MessageActionDTO,
+	MessageActionKindDTO,
+} from 'api/ai-assistant/sigNozAIAssistantAPI.schemas';
+import logEvent from 'api/common/logEvent';
+import { getCurrentLocation, navigate } from 'lib/router/navigation';
+import { act, render, screen, userEvent, waitFor } from 'tests/test-utils';
+
+import { AIAssistantEvents } from '../../../events';
+import ActionsSection from '../ActionsSection';
+
+jest.mock('api/common/logEvent');
+
+const mockLogEvent = jest.mocked(logEvent);
+
+const OPEN_ALERT: MessageActionDTO = {
+	kind: MessageActionKindDTO.open_resource,
+	label: 'Open alert',
+	resourceType: 'alert',
+	resourceId: 'rule-1',
+	actionMetadataId: 'meta-1',
+};
+
+const OPEN_ALERT_CHIP = 'ai-action-chip-open_resource';
+
+describe('ActionsSection open_resource', () => {
+	beforeEach(() => {
+		mockLogEvent.mockClear();
+	});
+
+	it.each([
+		'/alerts/edit?ruleId=rule-1&tab=1',
+		'/alerts/overview?ruleId=rule-1&relativeTime=6h',
+	])('disables Open alert while that alert is open at %s', async (route) => {
+		const user = userEvent.setup({ pointerEventsCheck: 0 });
+		render(
+			<ActionsSection actions={[OPEN_ALERT]} messageId="message-1" />,
+			undefined,
+			{ initialRoute: route },
+		);
+
+		const chip = screen.getByTestId(OPEN_ALERT_CHIP);
+		// With a disabled tooltip the button is aria-disabled so the tooltip stays reachable.
+		expect(chip).toHaveAttribute('aria-disabled', 'true');
+
+		await user.click(chip);
+
+		expect(`${getCurrentLocation().pathname}${getCurrentLocation().search}`).toBe(
+			route,
+		);
+		expect(mockLogEvent).not.toHaveBeenCalled();
+	});
+
+	it.each(['/alerts/edit?ruleId=rule-2', '/alerts/history?ruleId=rule-1'])(
+		'opens the alert from %s',
+		async (route) => {
+			const user = userEvent.setup({ pointerEventsCheck: 0 });
+			render(
+				<ActionsSection actions={[OPEN_ALERT]} messageId="message-2" />,
+				undefined,
+				{ initialRoute: route },
+			);
+
+			const chip = screen.getByTestId(OPEN_ALERT_CHIP);
+			expect(chip).not.toHaveAttribute('aria-disabled', 'true');
+
+			await user.click(chip);
+
+			await waitFor(() =>
+				expect(
+					`${getCurrentLocation().pathname}${getCurrentLocation().search}`,
+				).toBe('/alerts/edit?ruleId=rule-1'),
+			);
+			expect(mockLogEvent).toHaveBeenCalledWith(
+				AIAssistantEvents.ResourceOpened,
+				expect.objectContaining({ resourceId: 'rule-1' }),
+			);
+		},
+	);
+
+	it('enables Open alert again after navigating away from that alert', () => {
+		render(
+			<ActionsSection actions={[OPEN_ALERT]} messageId="message-3" />,
+			undefined,
+			{ initialRoute: '/alerts/edit?ruleId=rule-1' },
+		);
+		expect(screen.getByTestId(OPEN_ALERT_CHIP)).toHaveAttribute(
+			'aria-disabled',
+			'true',
+		);
+
+		act(() => navigate('/alerts/edit?ruleId=rule-2'));
+
+		expect(screen.getByTestId(OPEN_ALERT_CHIP)).not.toHaveAttribute(
+			'aria-disabled',
+			'true',
+		);
+	});
+});

frontend/src/container/AIAssistant/components/ActionsSection/utils/getOpenResourceTarget.ts

@@ -0,0 +1,39 @@
+import {
+	type MessageActionDTO,
+	MessageActionKindDTO,
+} from 'api/ai-assistant/sigNozAIAssistantAPI.schemas';
+
+import {
+	isSavedViewOpenAction,
+	resolveOpenResourceType,
+	resolveResourceId,
+} from './resolveOpenResource';
+import { resourceRoute } from './resourceRoute';
+
+export interface OpenResourceTarget {
+	path: string;
+	resourceType: string;
+	resourceId: string;
+}
+
+// Saved views return null so they're never disabled: reopening one resets the explorer to the saved query.
+export function getOpenResourceTarget(
+	action: MessageActionDTO,
+): OpenResourceTarget | null {
+	if (
+		action.kind !== MessageActionKindDTO.open_resource ||
+		isSavedViewOpenAction(action)
+	) {
+		return null;
+	}
+	const resourceType = resolveOpenResourceType(action);
+	const resourceId = resolveResourceId(action);
+	if (!resourceType || !resourceId) {
+		return null;
+	}
+	const path = resourceRoute(resourceType, resourceId);
+	if (!path) {
+		return null;
+	}
+	return { path, resourceType, resourceId };
+}

frontend/src/container/AIAssistant/components/ActionsSection/utils/isOnResourcePage.ts

@@ -0,0 +1,23 @@
+import ROUTES from 'constants/routes';
+import type { AppLocation } from 'lib/router/types';
+
+// The alert details Overview tab renders the same editor as the edit route.
+const EQUIVALENT_PATHNAMES: Record<string, string[]> = {
+	[ROUTES.EDIT_ALERTS]: [ROUTES.ALERT_OVERVIEW],
+};
+
+// Extra params on the current page (time range, view options) don't make it a different resource.
+export function isOnResourcePage(
+	path: string,
+	location: Pick<AppLocation, 'pathname' | 'search'>,
+): boolean {
+	const [pathname, query = ''] = path.split('?');
+	const pathnames = [pathname, ...(EQUIVALENT_PATHNAMES[pathname] ?? [])];
+	if (!pathnames.includes(location.pathname)) {
+		return false;
+	}
+	const current = new URLSearchParams(location.search);
+	return [...new URLSearchParams(query)].every(
+		([key, value]) => current.get(key) === value,
+	);
+}

frontend/src/container/CreateAlertChannels/utils.ts

@@ -1,18 +1,31 @@
-import {
-	PROMETHEUS_DURATION_UNIT_MS,
-	prometheusDurationToMs,
-} from 'utils/prometheusDuration';
-
 import { ChannelFormValues, WebhookAuth } from './types';
 
+// mirrors go's prometheus model.Duration units
+const JIRA_DURATION_UNIT_MS: Record<string, number> = {
+	ms: 1,
+	s: 1_000,
+	m: 60_000,
+	h: 3_600_000,
+	d: 86_400_000,
+	w: 604_800_000,
+	y: 31_536_000_000,
+};
+const JIRA_DURATION_RE = /^(\d+(ms|s|m|h|d|w|y))+$/;
+const JIRA_DURATION_TOKEN_RE = /(\d+)(ms|s|m|h|d|w|y)/g;
 const JIRA_MIN_REOPEN_MS = 60_000;
 
 export const isValidJiraReopenDuration = (value: string): boolean => {
 	if (!value || value === '0') {
 		return true;
 	}
-	const totalMs = prometheusDurationToMs(value);
-	return totalMs !== null && totalMs >= JIRA_MIN_REOPEN_MS;
+	if (!JIRA_DURATION_RE.test(value)) {
+		return false;
+	}
+	let totalMs = 0;
+	for (const [, amount, unit] of value.matchAll(JIRA_DURATION_TOKEN_RE)) {
+		totalMs += Number(amount) * JIRA_DURATION_UNIT_MS[unit];
+	}
+	return totalMs >= JIRA_MIN_REOPEN_MS;
 };
 
 /**
@@ -20,23 +33,25 @@ export const isValidJiraReopenDuration = (value: string): boolean => {
  * back: "72h" becomes "3d", "7d" becomes "1w".
  */
 const JIRA_DURATION_FORMAT: { unit: string; ms: number; exact: boolean }[] = [
-	{ unit: 'y', ms: PROMETHEUS_DURATION_UNIT_MS.y, exact: true },
-	{ unit: 'w', ms: PROMETHEUS_DURATION_UNIT_MS.w, exact: true },
-	{ unit: 'd', ms: PROMETHEUS_DURATION_UNIT_MS.d, exact: false },
-	{ unit: 'h', ms: PROMETHEUS_DURATION_UNIT_MS.h, exact: false },
-	{ unit: 'm', ms: PROMETHEUS_DURATION_UNIT_MS.m, exact: false },
-	{ unit: 's', ms: PROMETHEUS_DURATION_UNIT_MS.s, exact: false },
-	{ unit: 'ms', ms: PROMETHEUS_DURATION_UNIT_MS.ms, exact: false },
+	{ unit: 'y', ms: JIRA_DURATION_UNIT_MS.y, exact: true },
+	{ unit: 'w', ms: JIRA_DURATION_UNIT_MS.w, exact: true },
+	{ unit: 'd', ms: JIRA_DURATION_UNIT_MS.d, exact: false },
+	{ unit: 'h', ms: JIRA_DURATION_UNIT_MS.h, exact: false },
+	{ unit: 'm', ms: JIRA_DURATION_UNIT_MS.m, exact: false },
+	{ unit: 's', ms: JIRA_DURATION_UNIT_MS.s, exact: false },
+	{ unit: 'ms', ms: JIRA_DURATION_UNIT_MS.ms, exact: false },
 ];
 
 /** The API rejects a duration it would print differently. */
 export const canonicalJiraReopenDuration = (value: string): string => {
-	const totalMs = value && value !== '0' ? prometheusDurationToMs(value) : null;
-	if (totalMs === null) {
+	if (!value || value === '0' || !JIRA_DURATION_RE.test(value)) {
 		return value;
 	}
 
-	let remaining = totalMs;
+	let remaining = 0;
+	for (const [, amount, unit] of value.matchAll(JIRA_DURATION_TOKEN_RE)) {
+		remaining += Number(amount) * JIRA_DURATION_UNIT_MS[unit];
+	}
 	if (remaining === 0) {
 		return '0s';
 	}

frontend/src/container/LLMObservability/Explorer/Explorer.tsx

@@ -3,6 +3,7 @@ import { useQueryClient } from 'react-query';
 import { useAppSearchParams } from 'lib/router/useAppSearchParams';
 import * as Sentry from '@sentry/react';
 import logEvent from 'api/common/logEvent';
+import { SavedviewtypesSourceDTO } from 'api/generated/services/sigNoz.schemas';
 import QueryCancelledPlaceholder from 'components/QueryCancelledPlaceholder';
 import QuickFiltersLayout from 'components/QuickFilters/QuickFiltersLayout/QuickFiltersLayout';
 import { useSignalFieldApis } from 'components/QuickFilters/hooks/useSignalFieldApis';
@@ -85,8 +86,9 @@ function Explorer(): JSX.Element {
 		setIsLoadingQueries(false);
 	}, [queryClient]);
 
-	const [selectedView, setSelectedView] = useState<ExplorerViews>(() =>
-		getExplorerViewFromUrl(searchParams, panelTypesFromUrl),
+	const selectedView = useMemo(
+		() => getExplorerViewFromUrl(searchParams, panelTypesFromUrl),
+		[searchParams, panelTypesFromUrl],
 	);
 
 	const [warning, setWarning] = useState<Warning | undefined>();
@@ -115,8 +117,6 @@ function Explorer(): JSX.Element {
 		(view: ExplorerViews, querySearchParameters?: ICurrentQueryData): void => {
 			handleSetConfig(explorerViewToPanelType[view], DataSource.TRACES);
 
-			setSelectedView(view);
-
 			handleExplorerTabChange(
 				explorerViewToPanelType[view],
 				querySearchParameters,
@@ -190,6 +190,7 @@ function Explorer(): JSX.Element {
 				testId="llm-observability-explorer"
 				showFilters={isOpen}
 				onToggleFilters={(): void => setOpen(!isOpen)}
+				savedViewProps={{ source: SavedviewtypesSourceDTO.ai_observability }}
 				quickFilterProps={{
 					className: 'qf-traces-explorer',
 					quickFilterSource: QuickFiltersSource.AI_OBSERVABILITY,

frontend/src/container/LLMObservability/Explorer/TracesTable/TracesTable.tsx

@@ -1,6 +1,7 @@
-import { useCallback } from 'react';
+import { Dispatch, SetStateAction, useCallback } from 'react';
 import { useAppNavigate } from 'lib/router/useAppNavigate';
 import ErrorInPlace from 'components/ErrorInPlace/ErrorInPlace';
+import type { ColumnSizingState } from '@tanstack/react-table';
 import TanStackTable from 'components/TanStackTableView';
 import type {
 	CellTypographySize,
@@ -31,6 +32,8 @@ export type TracesTableProps = {
 	isFilterApplied: boolean;
 	onColumnOrderChange?: (cols: TableColumnDef<TracesTableRow>[]) => void;
 	onColumnRemove?: (columnId: string) => void;
+	columnSizing?: ColumnSizingState;
+	onColumnSizingChange?: Dispatch<SetStateAction<ColumnSizingState>>;
 	cellTypographySize?: CellTypographySize;
 };
 
@@ -48,6 +51,8 @@ function TracesTable({
 	isFilterApplied,
 	onColumnOrderChange,
 	onColumnRemove,
+	columnSizing,
+	onColumnSizingChange,
 	cellTypographySize = 'medium',
 }: TracesTableProps): JSX.Element {
 	const navigate = useAppNavigate();
@@ -98,6 +103,8 @@ function TracesTable({
 						cellTypographySize={cellTypographySize}
 						onColumnOrderChange={onColumnOrderChange}
 						onColumnRemove={onColumnRemove}
+						columnSizing={columnSizing}
+						onColumnSizingChange={onColumnSizingChange}
 						onRowClick={handleRowClick}
 						onRowClickNewTab={handleRowClickNewTab}
 						getRowTestId={(row): string => `traces-table-row-${row.id}`}
@@ -113,6 +120,8 @@ TracesTable.defaultProps = {
 	respectColumnOrder: false,
 	onColumnOrderChange: undefined,
 	onColumnRemove: undefined,
+	columnSizing: undefined,
+	onColumnSizingChange: undefined,
 	cellTypographySize: 'medium',
 };
 

frontend/src/container/LLMObservability/Explorer/TracesTable/__tests__/TracesTable.test.tsx

@@ -11,13 +11,16 @@ const PERSISTED_KEY = `@signoz/table-columns/${STORAGE_KEY}`;
 
 const ROWS = [{ id: 't1', trace_id: 'abc', 'service.name': 'checkout' }];
 
-// An aggregate outside the default order starts hidden, so the persisted
-// defaults are observable.
+// An aggregate that starts hidden, so the persisted defaults are observable.
 const COLUMNS = buildTraceViewColumns([
 	{ name: 'trace_id' },
 	{ name: 'service.name', fieldContext: 'resource' },
 	{ name: 'unlisted_aggregate' },
-]);
+]).map((column) =>
+	column.id === 'unlisted_aggregate'
+		? { ...column, defaultVisibility: false }
+		: column,
+);
 
 function RaceHarness(): JSX.Element {
 	const [columnsReady, setColumnsReady] = useState(false);

frontend/src/container/LLMObservability/Explorer/TracesView/TracesView.tsx

@@ -12,11 +12,19 @@ import { QueryKey } from 'react-query';
 import { useSelector } from 'react-redux';
 import logEvent from 'api/common/logEvent';
 import ListViewOrderBy from 'components/OrderBy/ListViewOrderBy';
+import type { ColumnSizingState } from '@tanstack/react-table';
+import { SavedviewtypesSourceDTO } from 'api/generated/services/sigNoz.schemas';
+import {
+	setColumnSizing,
+	useColumnSizing,
+} from 'components/TanStackTableView/useColumnStore';
+import type { TableColumnDef } from 'components/TanStackTableView/types';
 import { ENTITY_VERSION_V5 } from 'constants/app';
 import { LOCALSTORAGE } from 'constants/localStorage';
 import { QueryParams } from 'constants/query';
 import { initialQueryAIWithType, PANEL_TYPES } from 'constants/queryBuilder';
 import { REACT_QUERY_KEY } from 'constants/reactQueryKeys';
+import useOptionsMenu from 'container/OptionsMenu/useOptionsMenu';
 import { getTraceLink } from '../ListView/utils';
 import { TracesTableRow } from '../TracesTable/getFieldColumn';
 import TracesTable from '../TracesTable/TracesTable';
@@ -40,8 +48,11 @@ import {
 	TRACE_VIEW_ORDER_BY_EXTRA_FIELDS,
 } from '../constants';
 import { getListViewQuery } from '../explorerUtils';
-import { PER_PAGE_OPTIONS } from './configs';
-import { useTraceViewColumns } from './useTraceViewColumns';
+import {
+	buildTraceViewColumns,
+	PER_PAGE_OPTIONS,
+	REQUIRED_FIELDS,
+} from './configs';
 import styles from './TracesView.module.scss';
 
 interface TracesViewProps {
@@ -65,14 +76,37 @@ function TracesView({
 		[stagedQuery],
 	);
 
-	const {
-		columns,
-		selectedFields,
-		onFieldsChange,
-		requiredFields,
-		isLoading: isColumnsLoading,
-		canPersistColumns,
-	} = useTraceViewColumns();
+	const { options, config } = useOptionsMenu({
+		sourcePage: SavedviewtypesSourceDTO.ai_observability,
+	});
+
+	const tableColumns = useMemo(
+		() => buildTraceViewColumns(options.selectColumns),
+		[options.selectColumns],
+	);
+
+	const handleColumnOrderChange = useCallback(
+		(cols: TableColumnDef<TracesTableRow>[]): void => {
+			config?.addColumn?.onReorder(cols.map((column) => column.id));
+		},
+		[config],
+	);
+
+	// The column store keeps widths only; the picked columns live in the slice.
+	const columnSizing = useColumnSizing(
+		LOCALSTORAGE.AI_OBSERVABILITY_TRACE_VIEW_COLUMNS,
+	);
+	const handleColumnSizingChange = useCallback<
+		Dispatch<SetStateAction<ColumnSizingState>>
+	>(
+		(updater) => {
+			setColumnSizing(
+				LOCALSTORAGE.AI_OBSERVABILITY_TRACE_VIEW_COLUMNS,
+				typeof updater === 'function' ? updater(columnSizing) : updater,
+			);
+		},
+		[columnSizing],
+	);
 
 	const {
 		selectedTime: globalSelectedTime,
@@ -174,24 +208,6 @@ function TracesView({
 		[currentQuery, redirectWithQueryBuilderData],
 	);
 
-	// Without the full column set there is no pool to pick from, so the control is dropped.
-	const fieldsSelectorConfig = useMemo(
-		() =>
-			canPersistColumns
-				? { fieldsSelector: { value: selectedFields, onFieldsChange } }
-				: null,
-		[canPersistColumns, selectedFields, onFieldsChange],
-	);
-
-	// Rendering the pool unfiltered would surface columns the defaults keep hidden.
-	const tableColumns = useMemo(
-		() =>
-			canPersistColumns
-				? columns
-				: columns.filter((column) => column.defaultVisibility !== false),
-		[canPersistColumns, columns],
-	);
-
 	return (
 		<div className={styles.container}>
 			<div className={styles.actionsContainer}>
@@ -215,11 +231,11 @@ function TracesView({
 						isLoading={isLoading}
 						totalCount={rows.length}
 						perPageOptions={PER_PAGE_OPTIONS}
-						config={fieldsSelectorConfig}
+						config={config}
 						fieldKeysConfig={TRACE_VIEW_FIELD_KEYS}
 						builderQueryType={TRACE_VIEW_BUILDER_QUERY_TYPE}
 						extraFields={TRACE_VIEW_COLUMN_EXTRA_FIELDS}
-						requiredFields={requiredFields}
+						requiredFields={REQUIRED_FIELDS}
 					/>
 				</div>
 			</div>
@@ -227,15 +243,13 @@ function TracesView({
 			<TracesTable
 				data={rows}
 				columns={tableColumns}
-				columnStorageKey={
-					canPersistColumns
-						? LOCALSTORAGE.AI_OBSERVABILITY_TRACE_VIEW_COLUMNS
-						: undefined
-				}
-				respectColumnOrder
+				onColumnOrderChange={handleColumnOrderChange}
+				onColumnRemove={config?.addColumn?.onRemove}
+				columnSizing={columnSizing}
+				onColumnSizingChange={handleColumnSizingChange}
 				panelType="TRACE"
 				getRowHref={getTraceLink}
-				isLoading={isLoading || isColumnsLoading}
+				isLoading={isLoading}
 				isFetching={isFetching}
 				isError={isError}
 				error={error}

frontend/src/container/LLMObservability/Explorer/TracesView/__tests__/TracesView.columns.test.tsx

@@ -0,0 +1,182 @@
+import { ENVIRONMENT } from 'constants/env';
+import { server } from 'mocks-server/server';
+import { rest } from 'msw';
+import { render, screen, userEvent } from 'tests/test-utils';
+import { useColumnStore } from 'components/TanStackTableView/useColumnStore';
+import { LOCALSTORAGE } from 'constants/localStorage';
+import { initialQueryAIWithType, PANEL_TYPES } from 'constants/queryBuilder';
+
+import { TRACE_VIEW_DEFAULT_COLUMNS } from '../../constants';
+import type { TracesTableProps } from '../../TracesTable/TracesTable';
+import TracesView from '../TracesView';
+
+jest.mock('../../TracesTable/TracesTable', () => ({
+	__esModule: true,
+	default: ({
+		columns,
+		onColumnOrderChange,
+		onColumnRemove,
+		onColumnSizingChange,
+	}: TracesTableProps): JSX.Element => (
+		<div>
+			<div data-testid="table-columns">
+				{columns.map((column) => String(column.header)).join(',')}
+			</div>
+			<button
+				data-testid="reverse-columns"
+				type="button"
+				onClick={(): void => onColumnOrderChange?.([...columns].reverse())}
+			>
+				reverse
+			</button>
+			<button
+				data-testid="remove-total-tokens"
+				type="button"
+				onClick={(): void => onColumnRemove?.('trace:total_tokens:float64')}
+			>
+				remove
+			</button>
+			<button
+				data-testid="resize-trace-id"
+				type="button"
+				onClick={(): void => onColumnSizingChange?.({ trace_id: 240 })}
+			>
+				resize
+			</button>
+		</div>
+	),
+}));
+
+const PANEL_COLUMNS_KEY = LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS;
+const SIZING_KEY = LOCALSTORAGE.AI_OBSERVABILITY_TRACE_VIEW_COLUMNS;
+const QUERY_RANGE_URL = `${ENVIRONMENT.baseURL}/api/v5/query_range`;
+
+const TOTAL_TOKENS = {
+	name: 'total_tokens',
+	fieldContext: 'trace',
+	fieldDataType: 'float64',
+};
+
+const storedColumnNames = (): string[] | undefined => {
+	const raw = localStorage.getItem(PANEL_COLUMNS_KEY);
+	return raw
+		? (JSON.parse(raw)[PANEL_TYPES.TRACE] as { name: string }[]).map(
+				(field) => field.name,
+			)
+		: undefined;
+};
+
+const shownColumns = (): string[] =>
+	(screen.getByTestId('table-columns').textContent ?? '').split(',');
+
+const renderTracesView = (): ReturnType<typeof render> =>
+	render(
+		<TracesView
+			isFilterApplied={false}
+			setWarning={jest.fn()}
+			setIsLoadingQueries={jest.fn()}
+		/>,
+		{},
+		{
+			initialRoute: '/llm-observability/traces',
+			queryBuilderOverrides: {
+				panelType: PANEL_TYPES.TRACE,
+				stagedQuery: initialQueryAIWithType,
+				currentQuery: initialQueryAIWithType,
+			} as never,
+		},
+	);
+
+describe('TracesView columns', () => {
+	beforeEach(() => {
+		useColumnStore.setState({ tables: {} });
+		localStorage.clear();
+		server.use(
+			rest.post(QUERY_RANGE_URL, (_req, res, ctx) =>
+				res(ctx.status(200), ctx.json({ data: { type: 'trace', data: {} } })),
+			),
+		);
+	});
+
+	afterEach(() => {
+		server.resetHandlers();
+	});
+
+	it('shows the default columns while nothing is picked, storing nothing', () => {
+		renderTracesView();
+
+		expect(shownColumns()).toStrictEqual(
+			TRACE_VIEW_DEFAULT_COLUMNS.map((field) => field.name),
+		);
+		expect(localStorage.getItem(PANEL_COLUMNS_KEY)).toBeNull();
+	});
+
+	it('shows trace_id first when a stored list lacks it', () => {
+		localStorage.setItem(
+			PANEL_COLUMNS_KEY,
+			JSON.stringify({ [PANEL_TYPES.TRACE]: [TOTAL_TOKENS] }),
+		);
+
+		renderTracesView();
+
+		expect(shownColumns()).toStrictEqual(['trace_id', 'total_tokens']);
+	});
+
+	it('stores the order a column drag leaves behind', async () => {
+		const user = userEvent.setup();
+		localStorage.setItem(
+			PANEL_COLUMNS_KEY,
+			JSON.stringify({
+				[PANEL_TYPES.TRACE]: [{ name: 'trace_id' }, TOTAL_TOKENS],
+			}),
+		);
+		renderTracesView();
+
+		await user.click(screen.getByTestId('reverse-columns'));
+
+		expect(storedColumnNames()).toStrictEqual(['total_tokens', 'trace_id']);
+		expect(shownColumns()).toStrictEqual(['total_tokens', 'trace_id']);
+	});
+
+	it('keeps a dragged trace_id in place when the stored list lacks it', async () => {
+		const user = userEvent.setup();
+		localStorage.setItem(
+			PANEL_COLUMNS_KEY,
+			JSON.stringify({ [PANEL_TYPES.TRACE]: [TOTAL_TOKENS] }),
+		);
+		renderTracesView();
+
+		await user.click(screen.getByTestId('reverse-columns'));
+
+		expect(storedColumnNames()).toStrictEqual(['total_tokens', 'trace_id']);
+		expect(shownColumns()).toStrictEqual(['total_tokens', 'trace_id']);
+	});
+
+	it('drops a column removed from the table', async () => {
+		const user = userEvent.setup();
+		localStorage.setItem(
+			PANEL_COLUMNS_KEY,
+			JSON.stringify({
+				[PANEL_TYPES.TRACE]: [{ name: 'trace_id' }, TOTAL_TOKENS],
+			}),
+		);
+		renderTracesView();
+
+		await user.click(screen.getByTestId('remove-total-tokens'));
+
+		expect(storedColumnNames()).toStrictEqual(['trace_id']);
+		expect(shownColumns()).toStrictEqual(['trace_id']);
+	});
+
+	it('keeps column widths in the column store', async () => {
+		const user = userEvent.setup();
+		renderTracesView();
+
+		await user.click(screen.getByTestId('resize-trace-id'));
+
+		expect(
+			useColumnStore.getState().tables[SIZING_KEY].columnSizing,
+		).toStrictEqual({ trace_id: 240 });
+		expect(localStorage.getItem(PANEL_COLUMNS_KEY)).toBeNull();
+	});
+});

frontend/src/container/LLMObservability/Explorer/TracesView/__tests__/TracesView.test.tsx

@@ -12,8 +12,7 @@ import { initialQueryAIWithType, PANEL_TYPES } from 'constants/queryBuilder';
 
 import TracesView from '../TracesView';
 
-const STORAGE_KEY = LOCALSTORAGE.AI_OBSERVABILITY_TRACE_VIEW_COLUMNS;
-const PERSISTED_KEY = `@signoz/table-columns/${STORAGE_KEY}`;
+const PANEL_COLUMNS_KEY = LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS;
 const QUERY_RANGE_URL = `${ENVIRONMENT.baseURL}/api/v5/query_range`;
 const FIELD_KEYS_URL = `${ENVIRONMENT.baseURL}/api/v1/ai_observability/fields/keys`;
 
@@ -84,9 +83,9 @@ const mockFieldKeysFailure = (): void => {
 	);
 };
 
-const persistedState = (): { hiddenColumnIds: string[] } | null => {
-	const raw = localStorage.getItem(PERSISTED_KEY);
-	return raw ? (JSON.parse(raw) as { hiddenColumnIds: string[] }) : null;
+const storedOptions = (): Record<string, { name: string }[]> | null => {
+	const raw = localStorage.getItem(PANEL_COLUMNS_KEY);
+	return raw ? (JSON.parse(raw) as Record<string, { name: string }[]>) : null;
 };
 
 const renderTracesView = (): ReturnType<typeof render> =>
@@ -121,16 +120,16 @@ describe('TracesView column persistence', () => {
 	// Rows are virtualised, so a mounted table stands in for "rows arrived".
 	const findTable = (): Promise<HTMLElement> => screen.findByRole('table');
 
-	it('seeds the persisted defaults once the field keys arrive', async () => {
+	it('shows the default columns once the field keys arrive, storing nothing', async () => {
 		mockFieldKeys(['llm_call_count', 'tool_call_count']);
 		renderTracesView();
 
 		await findTable();
 
 		await waitFor(() => {
-			expect(persistedState()?.hiddenColumnIds).toStrictEqual([]);
+			expect(screen.getByText(OPTIONS_TRIGGER)).toBeInTheDocument();
 		});
-		expect(screen.getByText(OPTIONS_TRIGGER)).toBeInTheDocument();
+		expect(storedOptions()).toBeNull();
 		expect(screen.getByText('llm_call_count')).toBeInTheDocument();
 	});
 
@@ -140,20 +139,19 @@ describe('TracesView column persistence', () => {
 
 		await findTable();
 
-		expect(useColumnStore.getState().tables[STORAGE_KEY]).toBeUndefined();
-		expect(persistedState()).toBeNull();
+		expect(storedOptions()).toBeNull();
 	});
 
-	it('drops the column picker when the field keys fail', async () => {
+	it('keeps the column picker when the field keys fail', async () => {
 		mockFieldKeysFailure();
 		renderTracesView();
 
 		await findTable();
 
-		expect(screen.queryByText(OPTIONS_TRIGGER)).not.toBeInTheDocument();
+		expect(screen.getByText(OPTIONS_TRIGGER)).toBeInTheDocument();
 	});
 
-	it('renders the display-only columns when the field keys fail', async () => {
+	it('renders the default columns when the field keys fail', async () => {
 		mockFieldKeysFailure();
 		renderTracesView();
 
@@ -162,22 +160,27 @@ describe('TracesView column persistence', () => {
 		expect(screen.getByText('root_span_name')).toBeInTheDocument();
 		expect(screen.getByText('trace_id')).toBeInTheDocument();
 		expect(screen.getByText('input')).toBeInTheDocument();
-		expect(screen.queryByText('llm_call_count')).not.toBeInTheDocument();
+		expect(screen.getByText('llm_call_count')).toBeInTheDocument();
 	});
 
-	it('leaves an existing selection untouched while the field keys fail', async () => {
+	it('shows a stored selection, in its order, while the field keys fail', async () => {
 		const existing = {
-			hiddenColumnIds: ['trace:tool_call_count:float64', 'input', 'output'],
-			columnOrder: ['trace_id', 'resource:service.name'],
-			columnSizing: {},
+			[PANEL_TYPES.TRACE]: [
+				{ name: 'service.name', fieldContext: 'resource' },
+				{ name: 'trace_id' },
+			],
 		};
-		localStorage.setItem(PERSISTED_KEY, JSON.stringify(existing));
+		localStorage.setItem(PANEL_COLUMNS_KEY, JSON.stringify(existing));
 
 		mockFieldKeysFailure();
 		renderTracesView();
 
 		await findTable();
 
-		expect(persistedState()).toStrictEqual(existing);
+		const headers = screen
+			.getAllByRole('columnheader')
+			.map((header) => header.textContent);
+		expect(headers).toStrictEqual(['service.name', 'trace_id']);
+		expect(storedOptions()).toStrictEqual(existing);
 	});
 });

frontend/src/container/LLMObservability/Explorer/TracesView/__tests__/useTraceViewColumns.test.tsx

@@ -1,302 +0,0 @@
-/* eslint-disable no-restricted-syntax */
-import { ReactNode } from 'react';
-import { QueryClient, QueryClientProvider } from 'react-query';
-import { act, renderHook, waitFor } from '@testing-library/react';
-import { ENVIRONMENT } from 'constants/env';
-import { server } from 'mocks-server/server';
-import { rest } from 'msw';
-import {
-	TelemetrytypesFieldContextDTO,
-	TelemetrytypesFieldDataTypeDTO,
-} from 'api/generated/services/sigNoz.schemas';
-import { useColumnStore } from 'components/TanStackTableView/useColumnStore';
-import { LOCALSTORAGE } from 'constants/localStorage';
-import { TelemetryFieldKey } from 'types/api/v5/queryRange';
-
-import { useTraceViewColumns } from '../useTraceViewColumns';
-
-const STORAGE_KEY = LOCALSTORAGE.AI_OBSERVABILITY_TRACE_VIEW_COLUMNS;
-
-const AGGREGATE_KEYS = [
-	'llm_call_count',
-	'tool_call_count',
-	'distinct_tool_count',
-	'input_tokens',
-	'output_tokens',
-	'total_tokens',
-	'estimated_total_cost',
-	'max_llm_duration_nano',
-];
-
-const fieldNames = (fields: TelemetryFieldKey[]): string[] =>
-	fields.map((field) => field.name);
-
-const columnNames = (columns: { header?: unknown }[]): string[] =>
-	columns.map((column) => column.header as string);
-
-function wrapper({ children }: { children: ReactNode }): JSX.Element {
-	const queryClient = new QueryClient({
-		defaultOptions: { queries: { retry: false } },
-	});
-	return (
-		<QueryClientProvider client={queryClient}>{children}</QueryClientProvider>
-	);
-}
-
-const seenAI: URLSearchParams[] = [];
-
-const mockAggregateKeys = (names: string[]): void => {
-	server.use(
-		rest.get(
-			`${ENVIRONMENT.baseURL}/api/v1/ai_observability/fields/keys`,
-			(req, res, ctx) => {
-				seenAI.push(req.url.searchParams);
-				return res(
-					ctx.status(200),
-					ctx.json({
-						status: 'success',
-						data: {
-							complete: true,
-							keys: Object.fromEntries(
-								names.map((name) => [
-									name,
-									[
-										{
-											name,
-											fieldContext: TelemetrytypesFieldContextDTO.trace,
-											fieldDataType: TelemetrytypesFieldDataTypeDTO.float64,
-										},
-									],
-								]),
-							),
-						},
-					}),
-				);
-			},
-		),
-	);
-};
-
-const renderColumns = async (): Promise<
-	ReturnType<typeof renderHook<ReturnType<typeof useTraceViewColumns>, unknown>>
-> => {
-	const rendered = renderHook(() => useTraceViewColumns(), { wrapper });
-	await waitFor(() => {
-		expect(rendered.result.current.isLoading).toBe(false);
-	});
-	return rendered;
-};
-
-describe('useTraceViewColumns', () => {
-	beforeEach(() => {
-		seenAI.length = 0;
-		useColumnStore.getState().tables = {};
-		localStorage.clear();
-		mockAggregateKeys(AGGREGATE_KEYS);
-	});
-
-	it('reads the aggregates from the trace context of the keys endpoint', async () => {
-		await renderColumns();
-
-		expect(seenAI).toHaveLength(1);
-		expect(seenAI[0]?.get('searchText')).toBe('');
-		expect(seenAI[0]?.get('fieldContext')).toBe(
-			TelemetrytypesFieldContextDTO.trace,
-		);
-	});
-
-	it('pools the hardcoded display-only columns with the endpoint aggregates', async () => {
-		const { result } = await renderColumns();
-
-		expect(columnNames(result.current.columns)).toStrictEqual([
-			'trace_id',
-			'service.name',
-			'root_span_name',
-			'estimated_total_cost',
-			'trace_duration_nano',
-			'span_count',
-			'total_tokens',
-			'input_tokens',
-			'output_tokens',
-			'distinct_tool_count',
-			'llm_call_count',
-			'tool_call_count',
-			'start_time',
-			'end_time',
-			'error_count',
-			'input',
-			'output',
-			'max_llm_duration_nano',
-		]);
-	});
-
-	it('selects only the default-visible columns on first render', async () => {
-		const { result } = await renderColumns();
-
-		expect(fieldNames(result.current.selectedFields)).toStrictEqual([
-			'trace_id',
-			'service.name',
-			'root_span_name',
-			'estimated_total_cost',
-			'trace_duration_nano',
-			'span_count',
-			'total_tokens',
-			'input_tokens',
-			'output_tokens',
-			'distinct_tool_count',
-			'llm_call_count',
-			'tool_call_count',
-			'start_time',
-			'end_time',
-			'error_count',
-			'input',
-			'output',
-			'max_llm_duration_nano',
-		]);
-	});
-
-	it('keeps a newly reported aggregate hidden until it is picked', async () => {
-		mockAggregateKeys(['brand_new_aggregate']);
-
-		const { result } = await renderColumns();
-
-		expect(columnNames(result.current.columns)).toContain('brand_new_aggregate');
-		expect(fieldNames(result.current.selectedFields)).not.toContain(
-			'brand_new_aggregate',
-		);
-	});
-
-	describe('when the keys fetch fails', () => {
-		beforeEach(() => {
-			server.use(
-				rest.get(
-					`${ENVIRONMENT.baseURL}/api/v1/ai_observability/fields/keys`,
-					(_req, res, ctx) => res(ctx.status(500), ctx.json({ status: 'error' })),
-				),
-			);
-		});
-
-		it('does not persist defaults', async () => {
-			await renderColumns();
-
-			expect(useColumnStore.getState().tables[STORAGE_KEY]).toBeUndefined();
-			expect(
-				localStorage.getItem(`@signoz/table-columns/${STORAGE_KEY}`),
-			).toBeNull();
-		});
-
-		it('reports the column state as not persistable', async () => {
-			const { result } = await renderColumns();
-
-			expect(result.current.canPersistColumns).toBe(false);
-		});
-
-		it('ignores a selection change instead of persisting a partial set', async () => {
-			const { result } = await renderColumns();
-
-			act(() => {
-				result.current.onFieldsChange([{ name: 'trace_id' }]);
-			});
-
-			expect(useColumnStore.getState().tables[STORAGE_KEY]).toBeUndefined();
-		});
-
-		it('seeds the defaults once a later fetch succeeds', async () => {
-			const { unmount } = await renderColumns();
-			unmount();
-
-			mockAggregateKeys(AGGREGATE_KEYS);
-			const { result } = await renderColumns();
-
-			expect(result.current.canPersistColumns).toBe(true);
-			expect(fieldNames(result.current.selectedFields)).toStrictEqual([
-				'trace_id',
-				'service.name',
-				'root_span_name',
-				'estimated_total_cost',
-				'trace_duration_nano',
-				'span_count',
-				'total_tokens',
-				'input_tokens',
-				'output_tokens',
-				'distinct_tool_count',
-				'llm_call_count',
-				'tool_call_count',
-				'start_time',
-				'end_time',
-				'error_count',
-				'input',
-				'output',
-				'max_llm_duration_nano',
-			]);
-		});
-	});
-
-	it('hides the columns dropped from the selection', async () => {
-		const { result } = await renderColumns();
-
-		act(() => {
-			result.current.onFieldsChange([
-				{ name: 'trace_id' },
-				{ name: 'total_tokens', fieldContext: 'trace', fieldDataType: 'float64' },
-			]);
-		});
-
-		expect(fieldNames(result.current.selectedFields)).toStrictEqual([
-			'trace_id',
-			'total_tokens',
-		]);
-	});
-
-	it('shows a column added back from the pool', async () => {
-		const { result } = await renderColumns();
-
-		act(() => {
-			result.current.onFieldsChange([{ name: 'trace_id' }]);
-		});
-		act(() => {
-			result.current.onFieldsChange([{ name: 'trace_id' }, { name: 'input' }]);
-		});
-
-		expect(fieldNames(result.current.selectedFields)).toStrictEqual([
-			'trace_id',
-			'input',
-		]);
-	});
-
-	it('keeps the trace id column even when the selection drops it', async () => {
-		const { result } = await renderColumns();
-
-		act(() => {
-			result.current.onFieldsChange([{ name: 'span_count' }]);
-		});
-
-		expect(fieldNames(result.current.selectedFields)).toContain('trace_id');
-		expect(result.current.requiredFields).toStrictEqual(['trace_id']);
-	});
-
-	it('persists the selection order', async () => {
-		const { result } = await renderColumns();
-
-		act(() => {
-			result.current.onFieldsChange([
-				{ name: 'total_tokens', fieldContext: 'trace', fieldDataType: 'float64' },
-				{ name: 'trace_id' },
-				{ name: 'service.name', fieldContext: 'resource' },
-			]);
-		});
-
-		expect(fieldNames(result.current.selectedFields)).toStrictEqual([
-			'total_tokens',
-			'trace_id',
-			'service.name',
-		]);
-		expect(
-			useColumnStore.getState().tables[STORAGE_KEY].columnOrder,
-		).toStrictEqual([
-			'trace:total_tokens:float64',
-			'trace_id',
-			'resource:service.name',
-		]);
-	});
-});

frontend/src/container/LLMObservability/Explorer/TracesView/configs.tsx

@@ -3,52 +3,17 @@ import type { TableColumnDef } from 'components/TanStackTableView/types';
 import { getFieldColumn, TracesTableRow } from '../TracesTable/getFieldColumn';
 import { DEFAULT_PER_PAGE_OPTIONS } from 'hooks/queryPagination';
 
+import { TRACE_ID_COLUMN_ID } from '../constants';
+
 export const PER_PAGE_OPTIONS: number[] = [10, ...DEFAULT_PER_PAGE_OPTIONS];
 
-/** Always present: it is the row's link to the trace, but it can be reordered. */
-export const TRACE_ID_COLUMN_ID = 'trace_id';
-
-/** Fallback order, until the user drags a column; unlisted fields keep the order the keys endpoint returns them in. */
-const DEFAULT_COLUMN_ORDER = [
-	TRACE_ID_COLUMN_ID,
-	'service.name',
-	'root_span_name',
-	'estimated_total_cost',
-	'trace_duration_nano',
-	'span_count',
-	'total_tokens',
-	'input_tokens',
-	'output_tokens',
-	'distinct_tool_count',
-	'llm_call_count',
-	'tool_call_count',
-	'start_time',
-	'end_time',
-	'error_count',
-	'input',
-	'output',
-	'max_llm_duration_nano',
-];
-
-const orderRank = (field: TelemetryFieldKey): number => {
-	const index = DEFAULT_COLUMN_ORDER.indexOf(field.name);
-	return index === -1 ? Number.MAX_SAFE_INTEGER : index;
-};
-
-export const sortByDefaultOrder = (
-	fields: TelemetryFieldKey[],
-): TelemetryFieldKey[] =>
-	[...fields].sort((a, b) => orderRank(a) - orderRank(b));
-
-/** Anything the keys endpoint adds beyond the ordered set starts hidden; only applied at first init, since the store persists hidden ids. */
-const DEFAULT_VISIBLE_FIELDS = new Set(DEFAULT_COLUMN_ORDER);
+export const REQUIRED_FIELDS: readonly string[] = [TRACE_ID_COLUMN_ID];
 
 export const buildTraceViewColumns = (
 	fields: TelemetryFieldKey[],
 ): TableColumnDef<TracesTableRow>[] =>
 	fields.map((field) => ({
 		...getFieldColumn(field),
-		defaultVisibility: DEFAULT_VISIBLE_FIELDS.has(field.name),
 		// The shared column builder pins anything in TIMESTAMP_FIELD_NAMES; these stay movable.
 		enableMove: true,
 		enableRemove: field.name !== TRACE_ID_COLUMN_ID,

frontend/src/container/LLMObservability/Explorer/TracesView/useTraceViewColumns.ts

@@ -1,127 +0,0 @@
-import { useCallback, useEffect, useMemo } from 'react';
-import { useFieldKeysSuggestion } from 'hooks/querySuggestions/useFieldKeysSuggestion';
-import { mergeExtraFields } from 'utils/extraFields';
-import type { TableColumnDef } from 'components/TanStackTableView/types';
-import {
-	hideColumn,
-	initializeFromDefaults,
-	setColumnOrder,
-	showColumn,
-	useColumnOrder,
-	useHiddenColumnIds,
-} from 'components/TanStackTableView/useColumnStore';
-import { LOCALSTORAGE } from 'constants/localStorage';
-import { buildCompositeKey } from 'container/OptionsMenu/utils';
-import { TracesTableRow } from '../TracesTable/getFieldColumn';
-import { TelemetryFieldKey } from 'types/api/v5/queryRange';
-import { DATA_SOURCE_TO_SIGNAL, DataSource } from 'types/common/queryBuilder';
-
-import {
-	TRACE_VIEW_BUILDER_QUERY_TYPE,
-	TRACE_VIEW_COLUMN_EXTRA_FIELDS,
-	TRACE_VIEW_FIELD_KEYS,
-} from '../constants';
-import {
-	buildTraceViewColumns,
-	sortByDefaultOrder,
-	TRACE_ID_COLUMN_ID,
-} from './configs';
-
-const STORAGE_KEY = LOCALSTORAGE.AI_OBSERVABILITY_TRACE_VIEW_COLUMNS;
-
-/** Matches the id getFieldColumn derives, so fields and columns address alike. */
-const columnIdOf = (field: TelemetryFieldKey): string =>
-	buildCompositeKey(field.name, field.fieldContext, field.fieldDataType);
-
-interface UseTraceViewColumns {
-	columns: TableColumnDef<TracesTableRow>[];
-	selectedFields: TelemetryFieldKey[];
-	onFieldsChange: (next: TelemetryFieldKey[]) => void;
-	requiredFields: readonly string[];
-	isLoading: boolean;
-	/** False until the keys fetch lands; a partial set must not reach the persisted store. */
-	canPersistColumns: boolean;
-}
-
-// TODO(ai-explorer): browser-local only, unlike the list views' `?options=` columns.
-export function useTraceViewColumns(): UseTraceViewColumns {
-	const {
-		data: fetchedFields = [],
-		isFetched,
-		isSuccess,
-	} = useFieldKeysSuggestion(
-		{
-			...TRACE_VIEW_FIELD_KEYS,
-			signal: DATA_SOURCE_TO_SIGNAL[DataSource.TRACES],
-			searchText: '',
-		},
-		TRACE_VIEW_BUILDER_QUERY_TYPE,
-	);
-
-	const availableFields = useMemo(
-		() =>
-			sortByDefaultOrder(
-				mergeExtraFields(TRACE_VIEW_COLUMN_EXTRA_FIELDS, fetchedFields),
-			),
-		[fetchedFields],
-	);
-
-	const columns = useMemo(
-		() => buildTraceViewColumns(availableFields),
-		[availableFields],
-	);
-
-	// Defaults from a partial column set would persist as the user's own choice.
-	useEffect(() => {
-		if (isSuccess) {
-			initializeFromDefaults(STORAGE_KEY, columns);
-		}
-	}, [isSuccess, columns]);
-
-	const hiddenColumnIds = useHiddenColumnIds(STORAGE_KEY);
-	const columnOrder = useColumnOrder(STORAGE_KEY);
-
-	const selectedFields = useMemo(() => {
-		const hidden = new Set(hiddenColumnIds);
-		const orderIndex = new Map(columnOrder.map((id, index) => [id, index]));
-
-		return availableFields
-			.filter((field) => !hidden.has(columnIdOf(field)))
-			.sort(
-				(a, b) =>
-					(orderIndex.get(columnIdOf(a)) ?? Infinity) -
-					(orderIndex.get(columnIdOf(b)) ?? Infinity),
-			);
-	}, [availableFields, hiddenColumnIds, columnOrder]);
-
-	const onFieldsChange = useCallback(
-		(next: TelemetryFieldKey[]): void => {
-			if (!isSuccess) {
-				return;
-			}
-
-			const keptIds = new Set(next.map(columnIdOf));
-
-			columns.forEach((column) => {
-				if (keptIds.has(column.id) || column.id === TRACE_ID_COLUMN_ID) {
-					showColumn(STORAGE_KEY, column.id);
-				} else {
-					hideColumn(STORAGE_KEY, column.id);
-				}
-			});
-
-			// Columns missing from the order sort last, so the visible ones suffice.
-			setColumnOrder(STORAGE_KEY, next.map(columnIdOf));
-		},
-		[columns, isSuccess],
-	);
-
-	return {
-		columns,
-		selectedFields,
-		onFieldsChange,
-		requiredFields: [TRACE_ID_COLUMN_ID],
-		isLoading: !isFetched,
-		canPersistColumns: isSuccess,
-	};
-}

frontend/src/container/LLMObservability/Explorer/__tests__/Explorer.test.tsx

@@ -0,0 +1,46 @@
+import { QueryParams } from 'constants/query';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import ROUTES from 'constants/routes';
+import { renderWithExplorerProviders } from 'container/SavedViews/__tests__/savedViewsTestUtils';
+import { act, screen } from 'tests/test-utils';
+
+import Explorer from '../Explorer';
+
+jest.mock('../ListView/ListView', () => ({
+	__esModule: true,
+	default: (): JSX.Element => <div data-testid="ai-list-view" />,
+}));
+jest.mock('../TableView/TableView', () => ({
+	__esModule: true,
+	default: (): JSX.Element => <div data-testid="ai-table-view" />,
+}));
+
+const explorerUrlWithPanel = (panelType: PANEL_TYPES): string =>
+	`${ROUTES.AI_OBSERVABILITY_EXPLORER}?${QueryParams.panelTypes}=${encodeURIComponent(
+		JSON.stringify(panelType),
+	)}`;
+
+describe('AI observability Explorer', () => {
+	it('shows the view of the panel type in the url', () => {
+		renderWithExplorerProviders(
+			<Explorer />,
+			explorerUrlWithPanel(PANEL_TYPES.LIST),
+		);
+
+		expect(screen.getByTestId('ai-list-view')).toBeInTheDocument();
+	});
+
+	it('follows the url when the panel type changes, as opening a saved view does', () => {
+		const { history } = renderWithExplorerProviders(
+			<Explorer />,
+			explorerUrlWithPanel(PANEL_TYPES.LIST),
+		);
+
+		act(() => {
+			history.push(explorerUrlWithPanel(PANEL_TYPES.TABLE));
+		});
+
+		expect(screen.getByTestId('ai-table-view')).toBeInTheDocument();
+		expect(screen.queryByTestId('ai-list-view')).not.toBeInTheDocument();
+	});
+});

frontend/src/container/LLMObservability/Explorer/constants.ts

@@ -4,6 +4,9 @@ import { TelemetryFieldKey } from 'types/api/v5/queryRange';
 
 export const DEFAULT_PANEL_TYPE = PANEL_TYPES.TRACE;
 
+/** Always present: it is the row's link to the trace, but it can be reordered. */
+export const TRACE_ID_COLUMN_ID = 'trace_id';
+
 export const TOOLBAR_VIEWS = {
 	trace: {
 		name: 'trace',
@@ -57,6 +60,81 @@ export const TRACE_VIEW_COLUMN_EXTRA_FIELDS: TelemetryFieldKey[] = [
 	{ name: 'output' },
 ] as TelemetryFieldKey[];
 
+/**
+ * Shown, in this order, until the user picks columns. The aggregates are the
+ * keys the keys endpoint returns for builder_ai_query; the rest match
+ * TRACE_VIEW_COLUMN_EXTRA_FIELDS, so both build the same column ids.
+ */
+export const TRACE_VIEW_DEFAULT_COLUMNS: TelemetryFieldKey[] = [
+	{ name: 'trace_id' },
+	{ name: 'service.name', fieldContext: 'resource' },
+	{ name: 'root_span_name' },
+	{
+		name: 'estimated_total_cost',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+	{ name: 'trace_duration_nano' },
+	{ name: 'span_count' },
+	{
+		name: 'total_tokens',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+	{
+		name: 'input_tokens',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+	{
+		name: 'output_tokens',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+	{
+		name: 'distinct_tool_count',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+	{
+		name: 'llm_call_count',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+	{
+		name: 'tool_call_count',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+	{ name: 'start_time' },
+	{ name: 'end_time' },
+	{ name: 'error_count' },
+	{ name: 'input' },
+	{ name: 'output' },
+	{
+		name: 'max_llm_duration_nano',
+		signal: 'traces',
+		fieldContext: 'trace',
+		fieldDataType: 'float64',
+	},
+];
+
+export const ensureAiRequiredColumns = (
+	columns: TelemetryFieldKey[],
+	panelType: PANEL_TYPES,
+): TelemetryFieldKey[] =>
+	panelType !== PANEL_TYPES.TRACE ||
+	columns.some((column) => column.name === TRACE_ID_COLUMN_ID)
+		? columns
+		: [{ name: TRACE_ID_COLUMN_ID }, ...columns];
+
 export const TRACE_VIEW_FIELD_KEYS = {
 	fieldContext: TelemetrytypesFieldContextDTO.trace,
 } as const;

frontend/src/container/LogsExplorerList/LogsExplorerList.module.scss

@@ -0,0 +1,3 @@
+.logsTable {
+	--tanstack-table-row-height: 30px;
+}

frontend/src/container/LogsExplorerList/LogsExplorerList.style.scss

@@ -2,7 +2,6 @@
 	flex: 1;
 	display: flex;
 	flex-direction: column;
-	font-family: 'Space Mono', monospace;
 	font-size: 14px;
 	font-weight: 400;
 	line-height: 18px;
@@ -19,7 +18,6 @@
 			thead {
 				tr {
 					th {
-						font-family: 'Space Mono', monospace;
 						font-size: 12px;
 						color: white !important;
 
@@ -37,7 +35,6 @@
 					}
 
 					td {
-						font-family: 'Space Mono', monospace;
 						font-size: 12px;
 					}
 
@@ -57,7 +54,6 @@
 			tbody {
 				tr {
 					td {
-						font-family: 'Space Mono', monospace;
 						font-size: 12px;
 						padding: 4px !important;
 

frontend/src/container/LogsExplorerList/index.tsx

@@ -48,6 +48,7 @@ import {
 	isTraceToLogsQuery,
 } from './utils';
 
+import styles from './LogsExplorerList.module.scss';
 import './LogsExplorerList.style.scss';
 
 function Footer(): JSX.Element {
@@ -202,6 +203,7 @@ function LogsExplorerList({
 			return (
 				<TanStackTable<ILog>
 					ref={ref as React.Ref<TanStackTableHandle>}
+					className={styles.logsTable}
 					columns={logsColumns}
 					columnStorageKey={LOCALSTORAGE.LOGS_LIST_COLUMNS}
 					respectColumnOrder={false}

frontend/src/container/LogsExplorerViews/LogsExplorerViews.styles.scss

@@ -1,5 +1,4 @@
 .logs-explorer-views-container {
-	margin-bottom: 24px;
 	flex: 1;
 	min-height: 0;
 	display: flex;

frontend/src/container/OptionsMenu/__test__/useOptionsMenu.test.ts

@@ -87,6 +87,7 @@ describe('useOptionsMenu', () => {
 		mockUsePreferenceContext.mockReturnValue({
 			[SavedviewtypesSourceDTO.traces]: slice([], rawFormatting),
 			[SavedviewtypesSourceDTO.logs]: slice([], rawFormatting),
+			[SavedviewtypesSourceDTO.ai_observability]: slice([], {}),
 		} satisfies PreferenceContextValue);
 
 		mockUseUrlQueryData.mockReturnValue({
@@ -236,6 +237,7 @@ describe('useOptionsMenu', () => {
 			mockUsePreferenceContext.mockReturnValue({
 				[SavedviewtypesSourceDTO.traces]: slice([], baseFormatting),
 				[SavedviewtypesSourceDTO.logs]: slice(seedColumns, baseFormatting),
+				[SavedviewtypesSourceDTO.ai_observability]: slice([], {}),
 			} satisfies PreferenceContextValue);
 		});
 
@@ -357,6 +359,7 @@ describe('useOptionsMenu', () => {
 					},
 				),
 				[SavedviewtypesSourceDTO.logs]: slice([], {}),
+				[SavedviewtypesSourceDTO.ai_observability]: slice([], {}),
 			} satisfies PreferenceContextValue);
 
 			const { result } = renderHook(

frontend/src/container/OptionsMenu/constants.ts

@@ -21,6 +21,7 @@ export const SOURCE_PAGE_SIGNAL: Record<
 > = {
 	[SavedviewtypesSourceDTO.logs]: DataSource.LOGS,
 	[SavedviewtypesSourceDTO.traces]: DataSource.TRACES,
+	[SavedviewtypesSourceDTO.ai_observability]: DataSource.TRACES,
 };
 
 export const EXCLUDED_COLUMNS: Record<DataSource, string[]> = {

frontend/src/container/SavedViews/hooks/useActiveSavedView.ts

@@ -8,7 +8,10 @@ import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import { useGetSavedViewParams } from 'hooks/saveViews/useGetSavedViewParams';
 import { buildSavedViewReadPermission } from 'lib/authz/hooks/useAuthZ/permissions/saved-view.permissions';
 import { useAuthZ } from 'lib/authz/hooks/useAuthZ/useAuthZ';
-import { isPreferenceSourcePage } from 'providers/preferences/utils';
+import {
+	hasPreferences,
+	isPreferenceSourcePage,
+} from 'providers/preferences/utils';
 import { toAPIError } from 'utils/errorUtils';
 
 import { UseActiveSavedViewResult } from '../types';
@@ -20,9 +23,12 @@ export function useActiveSavedView(
 	const { viewKey } = useGetSavedViewParams();
 	const { stagedQuery, panelType } = useQueryBuilder();
 
-	const hasOptions = isPreferenceSourcePage(source);
+	const viewPanelType = panelType ?? PANEL_TYPES.LIST;
+	const hasOptions = hasPreferences(source, viewPanelType);
 	const { options } = useOptionsMenu({
-		sourcePage: hasOptions ? source : SavedviewtypesSourceDTO.logs,
+		sourcePage: isPreferenceSourcePage(source)
+			? source
+			: SavedviewtypesSourceDTO.logs,
 	});
 
 	const { isLoading: isCheckingRead, deniedPermissions } = useAuthZ(
@@ -61,16 +67,18 @@ export function useActiveSavedView(
 		return hasUnsavedViewChanges({
 			view,
 			stagedQuery,
-			panelType: panelType ?? PANEL_TYPES.LIST,
+			panelType: viewPanelType,
 			options: hasOptions ? options : undefined,
+			sourcePage: source,
 		});
 	}, [
 		view,
 		isError,
 		isStagedQueryCurrent,
 		stagedQuery,
-		panelType,
+		viewPanelType,
 		hasOptions,
+		source,
 		options,
 	]);
 

frontend/src/container/SavedViews/hooks/useSavedViewActions.ts

@@ -21,7 +21,10 @@ import { useHandleExplorerTabChange } from 'hooks/useHandleExplorerTabChange';
 import { useSafeNavigate } from 'hooks/useSafeNavigate';
 import { useAppLocation } from 'lib/router/useAppLocation';
 import { usePreferenceSlice } from 'providers/preferences/context/usePreferenceSlice';
-import { isPreferenceSourcePage } from 'providers/preferences/utils';
+import {
+	hasPreferences,
+	isPreferenceSourcePage,
+} from 'providers/preferences/utils';
 import { toAPIError } from 'utils/errorUtils';
 import { getUnstableCurrentSearchParams } from 'utils/getUnstableCurrentSearchParams';
 
@@ -59,9 +62,12 @@ export function useSavedViewActions(
 	const { viewKey } = useGetSavedViewParams();
 	const logSavedViewEvent = useSavedViewLogEvent(source);
 
-	const hasOptions = isPreferenceSourcePage(source);
+	const viewPanelType = panelType ?? PANEL_TYPES.LIST;
+	const hasOptions = hasPreferences(source, viewPanelType);
 	const { options } = useOptionsMenu({
-		sourcePage: hasOptions ? source : SavedviewtypesSourceDTO.logs,
+		sourcePage: isPreferenceSourcePage(source)
+			? source
+			: SavedviewtypesSourceDTO.logs,
 	});
 	const preferenceSlice = usePreferenceSlice(source);
 
@@ -79,12 +85,12 @@ export function useSavedViewActions(
 		(displayName: string, color?: string): SavedviewtypesSavedViewSpecDTO =>
 			toSavedViewSpec({
 				query: stagedQuery ?? currentQuery,
-				panelType: panelType ?? PANEL_TYPES.LIST,
+				panelType: viewPanelType,
 				displayName,
 				options: hasOptions ? options : undefined,
 				color,
 			}),
-		[stagedQuery, currentQuery, panelType, hasOptions, options],
+		[stagedQuery, currentQuery, viewPanelType, hasOptions, options],
 	);
 
 	const selectView = useCallback(
@@ -101,11 +107,11 @@ export function useSavedViewActions(
 	const revertView = useCallback(
 		(view: SavedviewtypesSavedViewDTO): void => {
 			if (preferenceSlice) {
-				const { columns, formatting } = getViewColumnsAndFormatting(
+				const { columns, formatting, panelType } = getViewColumnsAndFormatting(
 					view.spec,
 					source,
 				);
-				preferenceSlice.updateColumns(columns);
+				preferenceSlice.updateColumns(columns, panelType);
 				if (formatting) {
 					preferenceSlice.updateFormatting(formatting);
 				}

frontend/src/container/SavedViews/types.ts

@@ -32,6 +32,7 @@ export interface HasUnsavedViewChangesArgs {
 	stagedQuery: Query | null;
 	panelType: PANEL_TYPES;
 	options?: SavedViewOptions;
+	sourcePage: SavedviewtypesSourceDTO;
 }
 
 export interface UseLastUsedViewResult {

frontend/src/container/SavedViews/utils/__tests__/hasUnsavedViewChanges.test.ts

@@ -1,6 +1,7 @@
 import {
 	SavedviewtypesSavedViewDTO,
 	SavedviewtypesSavedViewSpecDTO,
+	SavedviewtypesSourceDTO,
 } from 'api/generated/services/sigNoz.schemas';
 import {
 	initialQueriesMap,
@@ -120,6 +121,7 @@ describe('hasUnsavedViewChanges', () => {
 				view,
 				stagedQuery: staged,
 				panelType: PANEL_TYPES.LIST,
+				sourcePage: SavedviewtypesSourceDTO.traces,
 				options: { ...options, selectColumns: [columns[0]] },
 			}),
 		).toBe(true);
@@ -139,6 +141,7 @@ describe('hasUnsavedViewChanges', () => {
 				view: bare,
 				stagedQuery: stagedFrom(bare, DataSource.TRACES),
 				panelType: PANEL_TYPES.LIST,
+				sourcePage: SavedviewtypesSourceDTO.traces,
 				options: { ...options, selectColumns: defaultTraceSelectedColumns },
 			}),
 		).toBe(false);
@@ -163,6 +166,7 @@ describe('hasUnsavedViewChanges', () => {
 					view: logsView,
 					stagedQuery: logsStaged,
 					panelType: PANEL_TYPES.LIST,
+					sourcePage: SavedviewtypesSourceDTO.logs,
 					options: { selectColumns: shownColumns, ...formatting },
 				}),
 			).toBe(false);
@@ -174,6 +178,7 @@ describe('hasUnsavedViewChanges', () => {
 					view: logsView,
 					stagedQuery: logsStaged,
 					panelType: PANEL_TYPES.LIST,
+					sourcePage: SavedviewtypesSourceDTO.logs,
 					options: { selectColumns: shownColumns, ...formatting, maxLines: 5 },
 				}),
 			).toBe(true);
@@ -193,6 +198,7 @@ describe('hasUnsavedViewChanges', () => {
 					view: bare,
 					stagedQuery: stagedFrom(bare, DataSource.LOGS),
 					panelType: PANEL_TYPES.LIST,
+					sourcePage: SavedviewtypesSourceDTO.logs,
 					options: {
 						selectColumns: defaultLogsSelectedColumns,
 						format: 'table',
@@ -236,6 +242,7 @@ describe('hasUnsavedViewChanges', () => {
 				view: olderView,
 				stagedQuery: stagedFrom(olderView, DataSource.METRICS),
 				panelType: PANEL_TYPES.TIME_SERIES,
+				sourcePage: SavedviewtypesSourceDTO.metrics,
 			}),
 		).toBe(false);
 	});
@@ -283,6 +290,7 @@ describe('hasUnsavedViewChanges', () => {
 				view: storedView,
 				stagedQuery: stagedWithTag,
 				panelType: PANEL_TYPES.TIME_SERIES,
+				sourcePage: SavedviewtypesSourceDTO.metrics,
 			}),
 		).toBe(false);
 	});
@@ -322,6 +330,7 @@ describe('hasUnsavedViewChanges', () => {
 					view: noOrder,
 					stagedQuery: stagedFrom(noOrder, DataSource.LOGS),
 					panelType: PANEL_TYPES.LIST,
+					sourcePage: SavedviewtypesSourceDTO.logs,
 				}),
 			).toBe(false);
 		});
@@ -337,6 +346,7 @@ describe('hasUnsavedViewChanges', () => {
 					view: noOrder,
 					stagedQuery: sorted,
 					panelType: PANEL_TYPES.LIST,
+					sourcePage: SavedviewtypesSourceDTO.logs,
 				}),
 			).toBe(true);
 
@@ -346,6 +356,7 @@ describe('hasUnsavedViewChanges', () => {
 					view: saved,
 					stagedQuery: stagedFrom(saved, DataSource.LOGS),
 					panelType: PANEL_TYPES.LIST,
+					sourcePage: SavedviewtypesSourceDTO.logs,
 				}),
 			).toBe(false);
 		});
@@ -362,6 +373,7 @@ describe('hasUnsavedViewChanges', () => {
 					view: legacy,
 					stagedQuery: stagedFrom(legacy, DataSource.LOGS),
 					panelType: PANEL_TYPES.LIST,
+					sourcePage: SavedviewtypesSourceDTO.logs,
 				}),
 			).toBe(false);
 		});
@@ -373,6 +385,7 @@ describe('hasUnsavedViewChanges', () => {
 				view,
 				stagedQuery: staged,
 				panelType: PANEL_TYPES.LIST,
+				sourcePage: SavedviewtypesSourceDTO.traces,
 				options: { ...options, ...formatting, maxLines: 5 },
 			}),
 		).toBe(false);

frontend/src/container/SavedViews/utils/getViewColumnsAndFormatting.ts

@@ -3,12 +3,18 @@ import {
 	SavedviewtypesSourceDTO,
 } from 'api/generated/services/sigNoz.schemas';
 import { TelemetryFieldKey } from 'api/v5/v5';
+import { PANEL_TYPES } from 'constants/queryBuilder';
 import {
 	defaultLogsSelectedColumns,
 	defaultTraceSelectedColumns,
 	ensureLogsRequiredColumns,
 } from 'container/OptionsMenu/constants';
+import {
+	DEFAULT_PANEL_TYPE,
+	ensureAiRequiredColumns,
+} from 'container/LLMObservability/Explorer/constants';
 import { FontSize, LogViewMode } from 'container/OptionsMenu/types';
+import getAiObservabilityLoaderConfig from 'providers/preferences/configs/aiObservabilityLoaderConfig';
 import { Preferences } from 'providers/preferences/types';
 
 function withColumnNames(
@@ -47,5 +53,18 @@ export function getViewColumnsAndFormatting(
 	if (sourcePage === SavedviewtypesSourceDTO.traces) {
 		return { columns: selectedFields || defaultTraceSelectedColumns };
 	}
+	if (sourcePage === SavedviewtypesSourceDTO.ai_observability) {
+		const panelType =
+			(spec?.panelType as unknown as PANEL_TYPES | undefined) ??
+			DEFAULT_PANEL_TYPE;
+		return {
+			columns: ensureAiRequiredColumns(
+				selectedFields ||
+					getAiObservabilityLoaderConfig(panelType).default().columns,
+				panelType,
+			),
+			panelType,
+		};
+	}
 	return { columns: [] };
 }

frontend/src/container/SavedViews/utils/hasUnsavedViewChanges.ts

@@ -1,13 +1,14 @@
-import { TelemetrytypesFieldContextDTO } from 'api/generated/services/sigNoz.schemas';
+import {
+	SavedviewtypesSourceDTO,
+	TelemetrytypesFieldContextDTO,
+} from 'api/generated/services/sigNoz.schemas';
 import { mapCompositeQueryFromQuery } from 'lib/newQueryBuilder/queryBuilderMappers/mapCompositeQueryFromQuery';
 import isEqual from 'lodash-es/isEqual';
-import { DataSource } from 'types/common/queryBuilder';
 
 import { HasUnsavedViewChangesArgs } from '../types';
 import { getSavedViewQuery } from './getSavedViewQuery';
 import { toSavedViewPanelType } from './toSavedViewSpec';
 import { getViewColumnsAndFormatting } from './getViewColumnsAndFormatting';
-import { toSavedViewSource } from './toSavedViewSource';
 
 // Legacy context names the server stores under their v5 name.
 const FIELD_CONTEXT_ALIASES: Record<string, TelemetrytypesFieldContextDTO> = {
@@ -51,6 +52,7 @@ export function hasUnsavedViewChanges({
 	stagedQuery,
 	panelType,
 	options,
+	sourcePage,
 }: HasUnsavedViewChangesArgs): boolean {
 	if (!stagedQuery) {
 		return false;
@@ -77,10 +79,9 @@ export function hasUnsavedViewChanges({
 		return false;
 	}
 
-	const dataSource = stagedQuery.builder.queryData[0]?.dataSource;
 	const { columns, formatting } = getViewColumnsAndFormatting(
 		view.spec,
-		toSavedViewSource(dataSource),
+		sourcePage,
 	);
 	const toNames = (fields: { name?: string; key?: string }[]): unknown[] =>
 		fields.map((field) => field.name ?? field.key);
@@ -88,7 +89,7 @@ export function hasUnsavedViewChanges({
 		return true;
 	}
 
-	if (dataSource !== DataSource.LOGS || !formatting) {
+	if (sourcePage !== SavedviewtypesSourceDTO.logs || !formatting) {
 		return false;
 	}
 	return (

frontend/src/container/SavedViews/utils/toSavedViewSource.ts

@@ -3,8 +3,8 @@ import { DataSource } from 'types/common/queryBuilder';
 
 import { SavedViewSourcePage } from '../types';
 
-// The views API files each view under a source page, but callers only know the
-// signal they query: a builder query's dataSource, or the AI assistant's hint.
+// The AI assistant names a view's source by DataSource (the signal), the api
+// keys views by source page.
 // TODO: remove in a follow-up once callers pass the source page directly.
 const SAVED_VIEW_SOURCE: Record<SavedViewSourcePage, SavedviewtypesSourceDTO> =
 	{

frontend/src/container/TracesExplorer/Controls/Controls.module.scss

@@ -1,14 +0,0 @@
-.container {
-	display: flex;
-	align-items: center;
-	justify-content: flex-end;
-	gap: 0.3rem;
-	margin: 8px 0;
-}
-
-.optionsTrigger {
-	display: flex;
-	align-items: center;
-	gap: 4px;
-	cursor: pointer;
-}

frontend/src/container/TracesExplorer/Controls/index.tsx

@@ -1,12 +1,12 @@
 import { memo, useState } from 'react';
 import { useTranslation } from 'react-i18next';
-import { Settings } from '@signozhq/icons';
+import { SlidersVertical } from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
+import { Tooltip } from '@signozhq/ui/tooltip';
 import FieldsSelector from 'components/FieldsSelector';
 import { OptionsMenuConfig } from 'container/OptionsMenu/types';
 import { DataSource } from 'types/common/queryBuilder';
 
-import styles from './Controls.module.scss';
-
 function TraceExplorerControls({
 	config,
 }: TraceExplorerControlsProps): JSX.Element | null {
@@ -17,15 +17,23 @@ function TraceExplorerControls({
 		return null;
 	}
 
+	const label = t('options_menu.options');
+
 	return (
-		<div className={styles.container}>
-			<div
-				className={styles.optionsTrigger}
-				onClick={(): void => setIsFieldsSelectorOpen(true)}
-			>
-				{t('options_menu.options')}
-				<Settings size="md" />
-			</div>
+		<>
+			<Tooltip title={label}>
+				<Button
+					variant="ghost"
+					color="secondary"
+					size="sm"
+					icon
+					aria-label={label}
+					testId="periscope-btn-options-traces"
+					onClick={(): void => setIsFieldsSelectorOpen(true)}
+				>
+					<SlidersVertical size={14} />
+				</Button>
+			</Tooltip>
 			<FieldsSelector
 				isOpen={isFieldsSelectorOpen}
 				title="Edit columns"
@@ -34,7 +42,7 @@ function TraceExplorerControls({
 				onClose={(): void => setIsFieldsSelectorOpen(false)}
 				signal={DataSource.TRACES}
 			/>
-		</div>
+		</>
 	);
 }
 

frontend/src/container/TracesExplorer/ListView/ListView.module.scss

@@ -7,6 +7,32 @@
 	min-height: 400px;
 }
 
+.controls {
+	display: flex;
+	justify-content: flex-end;
+	align-items: center;
+	gap: 4px;
+	min-height: 40px;
+	padding: 4px 8px;
+	border-bottom: 1px solid var(--l1-border);
+}
+
+.orderBy {
+	display: flex;
+	align-items: center;
+	gap: 8px;
+}
+
+.orderByLabel {
+	display: flex;
+	align-items: center;
+	gap: 4px;
+	color: var(--l2-foreground);
+	font-size: 12px;
+	font-weight: 400;
+	line-height: 16px;
+}
+
 .drawerScope {
 	display: contents;
 }

frontend/src/container/TracesExplorer/ListView/ListView.styles.scss

@@ -1,34 +0,0 @@
-.trace-explorer-controls {
-	display: flex;
-	justify-content: flex-end;
-	align-items: center;
-	gap: 8px;
-
-	.order-by-container {
-		display: flex;
-		align-items: center;
-		gap: 8px;
-
-		.order-by-label {
-			color: var(--muted-foreground);
-			font-size: 12px;
-			font-style: normal;
-			font-weight: 400;
-			line-height: 16px; /* 133.333% */
-
-			display: flex;
-			align-items: center;
-			gap: 4px;
-		}
-
-		.order-by-select {
-			width: 100px;
-
-			.ant-select-selector {
-				border: none;
-				box-shadow: none;
-				background-color: transparent;
-			}
-		}
-	}
-}

frontend/src/container/TracesExplorer/ListView/index.test.tsx

@@ -1,5 +1,5 @@
 import { rest, server } from 'mocks-server/server';
-import { render, screen, waitFor } from 'tests/test-utils';
+import { render, screen, userEvent, waitFor } from 'tests/test-utils';
 
 import ListView from './index';
 
@@ -60,7 +60,7 @@ const verifyControlsVisibility = (): void => {
 	expect(screen.getByText(/Order by/i)).toBeInTheDocument();
 
 	// Options menu (settings button) - check for translation key or actual text
-	expect(screen.getByText(/options_menu.options|options/i)).toBeInTheDocument();
+	expect(screen.getByTestId('periscope-btn-options-traces')).toBeInTheDocument();
 };
 
 describe('Traces ListView - Error and Empty States', () => {
@@ -148,8 +148,8 @@ describe('Traces ListView - Error and Empty States', () => {
 			expect(screen.getAllByRole('combobox').length).toBeGreaterThanOrEqual(1);
 
 			// Options menu should be clickable
-			const optionsButton = screen.getByText(/options_menu.options|options/i);
-			expect(optionsButton).toBeInTheDocument();
+			await userEvent.click(screen.getByTestId('periscope-btn-options-traces'));
+			await expect(screen.findByText('Edit columns')).resolves.toBeInTheDocument();
 		});
 
 		it('allows interaction with controls in empty state', async () => {
@@ -164,8 +164,8 @@ describe('Traces ListView - Error and Empty States', () => {
 			expect(screen.getAllByRole('combobox').length).toBeGreaterThanOrEqual(1);
 
 			// Options menu should be clickable
-			const optionsButton = screen.getByText(/options_menu.options|options/i);
-			expect(optionsButton).toBeInTheDocument();
+			await userEvent.click(screen.getByTestId('periscope-btn-options-traces'));
+			await expect(screen.findByText('Edit columns')).resolves.toBeInTheDocument();
 		});
 	});
 });

frontend/src/container/TracesExplorer/ListView/index.tsx

@@ -40,8 +40,6 @@ import { defaultSelectedColumns, TIMESTAMP_FIELD } from './configs';
 import { useListViewInfiniteQuery } from './useListViewInfiniteQuery';
 import { getTraceLink } from './utils';
 
-import './ListView.styles.scss';
-
 import styles from './ListView.module.scss';
 
 interface ListViewProps {
@@ -176,10 +174,10 @@ function ListView({
 
 	return (
 		<div className={styles.container}>
-			<div className="trace-explorer-controls">
+			<div className={styles.controls}>
 				{headerActions}
-				<div className="order-by-container">
-					<div className="order-by-label">
+				<div className={styles.orderBy}>
+					<div className={styles.orderByLabel}>
 						Order by <Minus size={14} /> <ArrowUp10 size={14} />
 					</div>
 

frontend/src/container/TracesExplorer/TracesTable/TracesTable.module.scss

@@ -6,6 +6,7 @@
 }
 
 .tracesTable {
+	--tanstack-table-row-height: 30px;
 	--tanstack-table-row-hover-bg: var(--l2-background-hover);
 	--tanstack-table-row-active-bg: var(--l3-background-60);
 }

frontend/src/container/TracesExplorer/TracesView/TracesView.module.scss

@@ -10,6 +10,16 @@
 
 .actionsContainer {
 	display: flex;
+	min-height: 40px;
+	padding: 4px 8px;
+	border-bottom: 1px solid var(--l1-border);
 	justify-content: space-between;
 	align-items: center;
 }
+
+.controls {
+	display: flex;
+	justify-content: flex-end;
+	align-items: center;
+	gap: 4px;
+}

frontend/src/container/TracesExplorer/TracesView/index.tsx

@@ -158,7 +158,7 @@ function TracesView({
 					</Typography.Link>
 				</Typography>
 
-				<div className="trace-explorer-controls">
+				<div className={styles.controls}>
 					{headerActions}
 					<DownloadOptionsMenu
 						dataSource={DataSource.TRACES}

frontend/src/lib/uPlotV2/components/Tooltip/components/TooltipList/TooltipList.module.scss

@@ -28,6 +28,23 @@
 	}
 }
 
+.itemButton {
+	display: block;
+	width: 100%;
+	padding: 0;
+	border: none;
+	border-radius: var(--radius);
+	background: none;
+	color: inherit;
+	font: inherit;
+	text-align: left;
+	cursor: pointer;
+
+	&:hover {
+		background: var(--l2-background-hover);
+	}
+}
+
 .listLightMode {
 	&::-webkit-scrollbar-thumb {
 		background: var(--bg-vanilla-400);

frontend/src/lib/uPlotV2/components/Tooltip/components/TooltipList/TooltipList.tsx

@@ -1,4 +1,10 @@
-import { useCallback, useMemo, useRef, useState } from 'react';
+import {
+	useCallback,
+	useMemo,
+	useRef,
+	useState,
+	type MouseEvent as ReactMouseEvent,
+} from 'react';
 import { Virtuoso } from 'react-virtuoso';
 import cx from 'classnames';
 import { useIsDarkMode } from 'hooks/useDarkMode';
@@ -22,11 +28,14 @@ const LIST_VERTICAL_PADDING = 16;
 interface TooltipListProps {
 	id: string;
 	content: TooltipContentItem[];
+	/** Makes each row a button. */
+	onItemClick?: (index: number, event: ReactMouseEvent) => void;
 }
 
 export default function TooltipList({
 	id,
 	content,
+	onItemClick,
 }: TooltipListProps): JSX.Element {
 	const isDarkMode = useIsDarkMode();
 	const isScrollEventTriggered = useRef(false);
@@ -62,9 +71,23 @@ export default function TooltipList({
 				onScroll={handleScroll}
 				style={{ height }}
 				totalListHeightChanged={setTotalListHeight}
-				itemContent={(_, item): JSX.Element => (
-					<TooltipItem item={item} isItemActive={item.isHighlighted === true} />
-				)}
+				itemContent={(index, item): JSX.Element => {
+					const row = (
+						<TooltipItem item={item} isItemActive={item.isHighlighted === true} />
+					);
+					return onItemClick ? (
+						<button
+							type="button"
+							className={Styles.itemButton}
+							data-testid="uplot-tooltip-item-button"
+							onClick={(event): void => onItemClick(index, event)}
+						>
+							{row}
+						</button>
+					) : (
+						row
+					);
+				}}
 			/>
 		</div>
 	);

frontend/src/lib/visualization/charts/Pie/Pie.module.scss

@@ -26,34 +26,7 @@
 }
 
 .pieChartTooltip {
-	padding: 8px 12px;
-	border-radius: 4px;
-	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
-	background-color: var(--l2-background) !important;
-	border: 1px solid var(--l2-border) !important;
 	z-index: 9999;
-	display: flex;
-	align-items: center;
-	justify-content: center;
-}
-.pieChartTooltipContent {
-	display: flex;
-	align-items: center;
-	justify-content: center;
-	gap: 8px;
-}
-
-.pieChartIndicator {
-	width: 12px;
-	height: 12px;
-	border-radius: 2px;
-	margin-right: 8px;
-	display: inline-block;
-}
-
-.pieChartTooltipValue {
-	font-weight: bold;
-	margin-top: 4px;
 }
 
 // width/height are set inline from the computed chart dimensions; border-box

frontend/src/lib/visualization/charts/Pie/Pie.tsx

@@ -2,7 +2,7 @@ import { useCallback, useMemo, useRef } from 'react';
 import { Color } from '@signozhq/design-tokens';
 import { Group } from '@visx/group';
 import { Pie as VisxPie } from '@visx/shape';
-import { defaultStyles, useTooltip, useTooltipInPortal } from '@visx/tooltip';
+import { useTooltipInPortal } from '@visx/tooltip';
 import cx from 'classnames';
 import { getYAxisFormattedValue } from 'components/Graph/yAxisConfig';
 import { useResizeObserver } from 'hooks/useDimensions';
@@ -14,14 +14,15 @@ import { PieChartProps, PieSlice } from 'lib/visualization/charts/types';
 import { calculateChartDimensions } from 'lib/visualization/charts/utils';
 
 import { useLegendVisibility } from 'lib/visualization/hooks/useLegendVisibility';
-import PieArc from 'lib/visualization/charts/Pie/PieArc';
-import PieCenterLabel from 'lib/visualization/charts/Pie/PieCenterLabel';
+import PieArc from 'lib/visualization/charts/Pie/components/PieArc/PieArc';
+import { groupPieSlices } from 'lib/visualization/charts/Pie/utils/groupPieSlices';
+import PieCenterLabel from 'lib/visualization/charts/Pie/components/PieCenterLabel/PieCenterLabel';
+import PieTooltipContent from 'lib/visualization/charts/Pie/components/PieTooltip/PieTooltipContent';
 import styles from 'lib/visualization/charts/Pie/Pie.module.scss';
-import { PieTooltipData } from 'lib/visualization/charts/Pie/types';
-import {
-	getDonutGeometry,
-	getFillColor,
-} from 'lib/visualization/charts/Pie/utils';
+import { usePieTooltip } from 'lib/visualization/charts/Pie/hooks/usePieTooltip';
+import { getFillColor } from 'lib/visualization/charts/Pie/utils/colors';
+import { getDonutGeometry } from 'lib/visualization/charts/Pie/utils/geometry';
+import { compareSlices } from 'lib/visualization/charts/Pie/utils/slices';
 
 /**
  * Donut chart rendered with @visx. Splits its area into chart + legend with the
@@ -56,20 +57,29 @@ export default function Pie({
 		[data, hiddenKeys],
 	);
 
-	// Hidden slices drop out so the remaining arcs + centre total recompute.
+	// Hidden slices drop out before grouping, so Other and the centre total recompute.
 	const visibleData = useMemo(
-		() => data.filter((slice) => !hiddenKeys.has(slice.label)),
-		[data, hiddenKeys],
+		() =>
+			groupPieSlices(
+				data.filter((slice) => !hiddenKeys.has(slice.label)),
+				isDarkMode,
+			),
+		[data, hiddenKeys, isDarkMode],
 	);
 
-	const {
-		tooltipOpen,
-		tooltipLeft,
-		tooltipTop,
-		tooltipData,
-		hideTooltip,
-		showTooltip,
-	} = useTooltip<PieTooltipData>();
+	// A series folded into Other highlights the Other arc.
+	const drawnColorByLabel = useMemo(
+		() =>
+			new Map(
+				visibleData.flatMap((slice) =>
+					(slice.groupedMembers ?? [slice]).map((entry): [string, string] => [
+						entry.label,
+						slice.color,
+					]),
+				),
+			),
+		[visibleData],
+	);
 
 	const { containerRef, TooltipInPortal } = useTooltipInPortal({
 		scroll: true,
@@ -112,34 +122,64 @@ export default function Pie({
 		[visibleData],
 	);
 
-	const labelColor = isDarkMode ? Color.BG_VANILLA_100 : Color.BG_INK_400;
-	const activeColor =
-		focusedSeriesIndex !== null ? data[focusedSeriesIndex].color : null;
-
-	const handleSliceEnter = useCallback(
-		(slice: PieSlice, centroidX: number, centroidY: number): void => {
-			showTooltip({
-				tooltipData: {
-					label: slice.label,
-					value: getYAxisFormattedValue(
-						slice.value.toString(),
-						yAxisUnit || 'none',
-						decimalPrecision,
-					),
-					color: slice.color,
-				},
-				tooltipTop: centroidY + height / 2,
-				tooltipLeft: centroidX + width / 2,
-			});
-			setFocusedKey(slice.label);
-		},
-		[showTooltip, setFocusedKey, yAxisUnit, decimalPrecision, height, width],
+	const formatValue = useCallback(
+		(value: number): string =>
+			getYAxisFormattedValue(
+				value.toString(),
+				yAxisUnit || 'none',
+				decimalPrecision,
+			),
+		[yAxisUnit, decimalPrecision],
 	);
 
-	const handleSliceLeave = useCallback((): void => {
-		hideTooltip();
-		setFocusedKey(null);
-	}, [hideTooltip, setFocusedKey]);
+	const {
+		tooltipOpen,
+		tooltipTop,
+		tooltipLeft,
+		tooltipData,
+		isPinned,
+		unpin,
+		handleSliceHover,
+		handleSliceLeave,
+		handleSliceClick,
+		handleMemberClick,
+	} = usePieTooltip({
+		slices: visibleData,
+		chartRef: wrapperRef,
+		formatValue,
+		setFocusedKey,
+		onSliceClick,
+	});
+
+	const labelColor = isDarkMode ? Color.BG_VANILLA_100 : Color.BG_INK_400;
+	const hoveredColor = tooltipOpen ? tooltipData?.slice.color : undefined;
+	const activeColor =
+		hoveredColor ??
+		(focusedSeriesIndex !== null
+			? (drawnColorByLabel.get(labels[focusedSeriesIndex]) ?? null)
+			: null);
+
+	// The tooltip re-renders Pie on every mouse move; a stable element lets React skip the legend.
+	const legend = useMemo(
+		() => (
+			<Legend
+				items={legendItems}
+				position={position}
+				averageLegendWidth={averageLegendWidth}
+				showSearch={showLegendSearch}
+				focusedSeriesIndex={focusedSeriesIndex}
+				onAction={onLegendAction}
+			/>
+		),
+		[
+			legendItems,
+			position,
+			averageLegendWidth,
+			showLegendSearch,
+			focusedSeriesIndex,
+			onLegendAction,
+		],
+	);
 
 	if (!data.length) {
 		return (
@@ -169,6 +209,7 @@ export default function Pie({
 							<VisxPie
 								data={visibleData}
 								pieValue={(slice: PieSlice): number => slice.value}
+								pieSort={compareSlices}
 								outerRadius={radius}
 								innerRadius={innerRadius}
 								padAngle={0.01}
@@ -193,9 +234,9 @@ export default function Pie({
 											decimalPrecision={decimalPrecision}
 											labelColor={labelColor}
 											fill={getFillColor(arc.data.color, activeColor)}
-											onEnter={handleSliceEnter}
+											onHover={handleSliceHover}
 											onLeave={handleSliceLeave}
-											onClick={onSliceClick}
+											onClick={handleSliceClick}
 										/>
 									))
 								}
@@ -216,19 +257,19 @@ export default function Pie({
 						top={tooltipTop}
 						left={tooltipLeft}
 						className={styles.pieChartTooltip}
-						style={{
-							...defaultStyles,
-							color: labelColor,
-						}}
+						unstyled
+						applyPositionStyle
+						style={{ pointerEvents: isPinned ? 'auto' : 'none' }}
+						data-pie-tooltip=""
 					>
-						<div
-							className={styles.pieChartIndicator}
-							style={{ background: tooltipData.color }}
+						<PieTooltipContent
+							id={id ?? ''}
+							data={tooltipData}
+							isPinned={isPinned}
+							canDrilldown={!!onSliceClick}
+							onMemberClick={handleMemberClick}
+							onUnpin={unpin}
 						/>
-						<div className={styles.pieChartTooltipContent}>
-							<span>{tooltipData.label}</span>
-							<span className={styles.pieChartTooltipValue}>{tooltipData.value}</span>
-						</div>
 					</TooltipInPortal>
 				)}
 			</div>
@@ -241,14 +282,7 @@ export default function Pie({
 					height: legendHeight,
 				}}
 			>
-				<Legend
-					items={legendItems}
-					position={position}
-					averageLegendWidth={averageLegendWidth}
-					showSearch={showLegendSearch}
-					focusedSeriesIndex={focusedSeriesIndex}
-					onAction={onLegendAction}
-				/>
+				{legend}
 			</div>
 		</div>
 	);

frontend/src/lib/visualization/charts/Pie/__tests__/Pie.test.tsx

@@ -3,8 +3,9 @@ import { fireEvent, render, screen, within } from '@testing-library/react';
 import { LegendPosition } from 'lib/uPlotV2/components/types';
 import { LegendItem } from 'lib/uPlotV2/config/types';
 
-import { PieSlice } from 'lib/visualization/charts/types';
+import { PieChartProps, PieSlice } from 'lib/visualization/charts/types';
 import Pie from 'lib/visualization/charts/Pie/Pie';
+import { userEvent } from 'tests/test-utils';
 
 jest.mock('hooks/useDimensions', () => ({
 	useResizeObserver: jest.fn().mockReturnValue({ width: 400, height: 300 }),
@@ -14,22 +15,43 @@ jest.mock('components/Graph/yAxisConfig', () => ({
 	getYAxisFormattedValue: jest.fn((value: string) => value),
 }));
 
-// VirtuosoGrid only renders a window in jsdom; render every item so we can
-// assert on legend entries.
+let mockLegendRenders = 0;
+
+// Virtuoso only renders a window in jsdom; render every item so we can
+// assert on legend entries and tooltip rows.
 jest.mock('react-virtuoso', () => ({
+	Virtuoso: ({
+		data,
+		itemContent,
+		'data-testid': testId,
+	}: {
+		data: unknown[];
+		itemContent: (index: number, item: unknown) => React.ReactNode;
+		'data-testid'?: string;
+	}): JSX.Element => (
+		<div data-testid={testId}>
+			{data.map((item, index) => (
+				// eslint-disable-next-line react/no-array-index-key
+				<div key={index}>{itemContent(index, item)}</div>
+			))}
+		</div>
+	),
 	VirtuosoGrid: ({
 		data,
 		itemContent,
 	}: {
 		data: LegendItem[];
 		itemContent: (index: number, item: LegendItem) => React.ReactNode;
-	}): JSX.Element => (
-		<div data-testid="virtuoso-grid">
-			{data.map((item, index) => (
-				<div key={item.seriesIndex ?? index}>{itemContent(index, item)}</div>
-			))}
-		</div>
-	),
+	}): JSX.Element => {
+		mockLegendRenders += 1;
+		return (
+			<div data-testid="virtuoso-grid">
+				{data.map((item, index) => (
+					<div key={item.seriesIndex ?? index}>{itemContent(index, item)}</div>
+				))}
+			</div>
+		);
+	},
 }));
 
 const DATA: PieSlice[] = [
@@ -40,10 +62,16 @@ const DATA: PieSlice[] = [
 
 function renderPie(
 	props: Partial<React.ComponentProps<typeof Pie>> = {},
-): void {
-	render(<Pie data={DATA} isDarkMode={false} data-testid="pie" {...props} />);
+): ReturnType<typeof render> {
+	return render(
+		<Pie data={DATA} isDarkMode={false} data-testid="pie" {...props} />,
+	);
 }
 
+const mockSliceClick = (): jest.MockedFunction<
+	NonNullable<PieChartProps['onSliceClick']>
+> => jest.fn();
+
 describe('Pie', () => {
 	it('renders the "No data" state for empty data', () => {
 		render(<Pie data={[]} isDarkMode={false} data-testid="pie" />);
@@ -124,4 +152,224 @@ describe('Pie', () => {
 		// One slice hidden → one fewer arc drawn.
 		expect(svg.querySelectorAll('path')).toHaveLength(1);
 	});
+
+	it('hints at drill-down on a plain slice only when clickable', async () => {
+		const user = userEvent.setup({ pointerEventsCheck: 0 });
+		const { unmount } = renderPie({ onSliceClick: mockSliceClick() });
+		const arc = (): Element =>
+			screen.getByTestId('pie').querySelectorAll('svg g g')[0];
+		await user.hover(arc());
+		expect(screen.getByText('Click to drilldown')).toBeInTheDocument();
+		unmount();
+
+		renderPie();
+		await user.hover(arc());
+		expect(screen.queryByTestId('pie-tooltip-footer')).toBeNull();
+	});
+
+	it('does not re-render the legend while the tooltip follows the cursor', async () => {
+		const user = userEvent.setup({ pointerEventsCheck: 0 });
+		renderPie();
+		const arc = screen.getByTestId('pie').querySelectorAll('svg g g')[0];
+		await user.hover(arc);
+		const rendersAfterEnter = mockLegendRenders;
+
+		// user-event leaves clientX/Y at 0 in jsdom, so cursor moves go through fireEvent.
+		fireEvent.mouseMove(arc, { clientX: 20, clientY: 20 });
+		fireEvent.mouseMove(arc, { clientX: 30, clientY: 30 });
+
+		expect(mockLegendRenders).toBe(rendersAfterEnter);
+	});
+
+	describe('grouped slice', () => {
+		// Each member is under 1% of the 2078 total, so the 12 fold into Other.
+		const members: PieSlice[] = Array.from({ length: 12 }, (_, index) => ({
+			label: `svc-${index}`,
+			value: 12 - index,
+			color: '#123456',
+		}));
+		const GROUPED: PieSlice[] = [
+			{ label: 'frontend', value: 1000, color: '#aa0000' },
+			{ label: 'cart', value: 600, color: '#00aa00' },
+			{ label: 'checkout', value: 400, color: '#0000aa' },
+			...members,
+		];
+		const arcs = (testId = 'pie'): NodeListOf<SVGPathElement> =>
+			(
+				screen.getByTestId(testId).querySelector('svg') as SVGElement
+			).querySelectorAll('path');
+		const arcGroups = (testId = 'pie'): NodeListOf<SVGGElement> =>
+			(
+				screen.getByTestId(testId).querySelector('svg') as SVGElement
+			).querySelectorAll('g g');
+		const tooltipList = (): HTMLElement =>
+			screen.getByTestId('uplot-tooltip-list');
+		const tooltip = (): HTMLElement =>
+			document.querySelector('[data-pie-tooltip]') as HTMLElement;
+
+		let user: ReturnType<typeof userEvent.setup>;
+		beforeEach(() => {
+			user = userEvent.setup({ pointerEventsCheck: 0 });
+		});
+
+		const hoverOther = async (testId = 'pie'): Promise<SVGGElement> => {
+			const otherArc = arcGroups(testId)[3];
+			await user.hover(otherArc);
+			return otherArc;
+		};
+
+		it('draws one Other arc but lists every series in the legend', () => {
+			renderPie({ data: GROUPED });
+
+			expect(arcs()).toHaveLength(4);
+			expect(screen.getByText('Other (12)')).toBeInTheDocument();
+			const legend = screen.getByTestId('virtuoso-grid');
+			expect(within(legend).getByText('svc-11')).toBeInTheDocument();
+			expect(within(legend).queryByText(/^Other/)).toBeNull();
+		});
+
+		it('highlights the Other arc when a series inside it is hovered in the legend', async () => {
+			renderPie({ data: GROUPED });
+
+			await user.hover(screen.getByTestId('legend-item-5'));
+
+			const fills = [...arcs()].map((arc) => arc.getAttribute('fill'));
+			expect(fills[0]).toBe('rgba(170, 0, 0, 0.4)');
+			expect(fills[3]).not.toMatch(/^rgba/);
+		});
+
+		it('highlights a real series named Other, not the grouped slice', async () => {
+			renderPie({
+				data: [
+					...GROUPED.slice(0, 3),
+					{ label: 'Other', value: 500, color: '#00aaaa' },
+					...members,
+				],
+			});
+
+			await user.hover(screen.getByTestId('legend-item-3'));
+
+			const fills = [...arcs()].map((arc) => arc.getAttribute('fill'));
+			expect(fills[3]).toBe('#00aaaa');
+			expect(fills[fills.length - 1]).toMatch(/^rgba/);
+		});
+
+		it('regroups Other from the series left showing', async () => {
+			renderPie({ data: GROUPED });
+
+			// Isolate one member, then add a second back: Other can't hold just one.
+			await user.click(screen.getByTestId('legend-item-3'));
+			expect(arcs()).toHaveLength(1);
+			await user.click(screen.getByTestId('legend-item-0'));
+			await user.click(screen.getByTestId('legend-item-4'));
+
+			expect(arcs()).toHaveLength(3);
+			expect(screen.queryByText(/^Other/)).toBeNull();
+		});
+
+		it('lists every member in the hover tooltip, not yet clickable', async () => {
+			renderPie({ data: GROUPED, onSliceClick: mockSliceClick() });
+
+			await hoverOther();
+
+			expect(tooltipList().children).toHaveLength(12);
+			expect(within(tooltipList()).getByText('svc-11')).toBeInTheDocument();
+			expect(
+				screen.getByText('Click to pin, then pick a series'),
+			).toBeInTheDocument();
+			expect(screen.queryByTestId('uplot-tooltip-item-button')).toBeNull();
+			expect(screen.queryByTestId('uplot-tooltip-status')).toBeNull();
+		});
+
+		it('follows the cursor until pinned', async () => {
+			renderPie({ data: GROUPED, onSliceClick: mockSliceClick() });
+			const otherArc = await hoverOther();
+
+			// user-event leaves clientX/Y at 0 in jsdom, so cursor moves go through fireEvent.
+			fireEvent.mouseMove(otherArc, { clientX: 100, clientY: 50 });
+			const first = tooltip().getAttribute('style');
+			fireEvent.mouseMove(otherArc, { clientX: 140, clientY: 90 });
+			const moved = tooltip().getAttribute('style');
+			expect(moved).not.toBe(first);
+
+			await user.click(otherArc);
+			fireEvent.mouseMove(otherArc, { clientX: 10, clientY: 10 });
+			expect(tooltip().getAttribute('style')).toBe(moved);
+		});
+
+		it('pins on click, then drills into the clicked member', async () => {
+			const onSliceClick = mockSliceClick();
+			renderPie({ data: GROUPED, onSliceClick });
+
+			const otherArc = await hoverOther();
+			await user.click(otherArc);
+			await user.unhover(otherArc);
+
+			expect(onSliceClick).not.toHaveBeenCalled();
+			expect(screen.getByTestId('uplot-tooltip-status')).toBeInTheDocument();
+			expect(screen.getByText('12 series')).toBeInTheDocument();
+			expect(screen.getByText('Click a series to drilldown')).toBeInTheDocument();
+
+			jest
+				.spyOn(tooltip(), 'getBoundingClientRect')
+				.mockReturnValue({ left: 40, top: 70 } as DOMRect);
+			await user.click(within(tooltipList()).getByText('svc-3'));
+
+			// The drill-down menu opens where the pinned tooltip was, not at the row.
+			expect(onSliceClick).toHaveBeenCalledWith(members[3], { x: 40, y: 70 });
+			expect(screen.queryByTestId('uplot-tooltip-list')).toBeNull();
+		});
+
+		it('unpins on Escape, a click outside and the Unpin button', async () => {
+			renderPie({ data: GROUPED, onSliceClick: mockSliceClick() });
+
+			await user.click(await hoverOther());
+			await user.keyboard('{Escape}');
+			expect(screen.queryByTestId('uplot-tooltip-list')).toBeNull();
+
+			await user.click(await hoverOther());
+			await user.click(document.body);
+			expect(screen.queryByTestId('uplot-tooltip-list')).toBeNull();
+
+			await user.click(await hoverOther());
+			await user.click(screen.getByTestId('pie-tooltip-unpin'));
+			expect(screen.queryByTestId('uplot-tooltip-list')).toBeNull();
+		});
+
+		it('unpins when a click lands on another pie', async () => {
+			render(
+				<>
+					<Pie data={GROUPED} isDarkMode={false} data-testid="pie" />
+					<Pie data={DATA} isDarkMode={false} data-testid="other-pie" />
+				</>,
+			);
+
+			await user.click(await hoverOther());
+			expect(tooltipList()).toBeInTheDocument();
+
+			await user.click(arcGroups('other-pie')[0]);
+
+			expect(screen.queryByTestId('uplot-tooltip-list')).toBeNull();
+		});
+
+		it('drops the pinned tooltip when new data arrives', async () => {
+			const { rerender } = renderPie({ data: GROUPED });
+
+			await user.click(await hoverOther());
+			expect(tooltipList()).toBeInTheDocument();
+
+			rerender(<Pie data={[...GROUPED]} isDarkMode={false} data-testid="pie" />);
+
+			expect(screen.queryByTestId('uplot-tooltip-list')).toBeNull();
+		});
+
+		it('pins without drill-down targets when drill-down is off', async () => {
+			renderPie({ data: GROUPED });
+
+			await user.click(await hoverOther());
+
+			expect(screen.queryByTestId('uplot-tooltip-item-button')).toBeNull();
+			expect(screen.getByTestId('pie-tooltip-unpin')).toBeInTheDocument();
+		});
+	});
 });

frontend/src/lib/visualization/charts/Pie/components/PieArc/PieArc.tsx

@@ -4,7 +4,8 @@ import { getYAxisFormattedValue } from 'components/Graph/yAxisConfig';
 
 import { PieSlice } from 'lib/visualization/charts/types';
 
-import { getArcGeometry } from 'lib/visualization/charts/Pie/utils';
+import { getArcGeometry } from 'lib/visualization/charts/Pie/utils/geometry';
+import { getSliceDisplayLabel } from 'lib/visualization/charts/Pie/utils/slices';
 
 // Slices below this share of the total don't get a leader label (too cramped).
 const MIN_LABEL_SHARE = 0.03;
@@ -14,7 +15,7 @@ interface PieArcProps {
 	slice: PieSlice;
 	/** SVG path `d` for the arc, from the visx pie generator. */
 	arcPath: string;
-	/** Arc centroid `[x, y]`, used to anchor the leader line and tooltip. */
+	/** Arc centroid `[x, y]`, used to anchor the leader line. */
 	centroid: [number, number];
 	startAngle: number;
 	endAngle: number;
@@ -26,7 +27,8 @@ interface PieArcProps {
 	labelColor: string;
 	/** Resolved fill (already dimmed if another slice is active). */
 	fill: string;
-	onEnter: (slice: PieSlice, centroidX: number, centroidY: number) => void;
+	/** Fired on enter and on every move, so the tooltip can follow the cursor. */
+	onHover: (slice: PieSlice, event: ReactMouseEvent<SVGGElement>) => void;
 	onLeave: () => void;
 	onClick?: (slice: PieSlice, event: ReactMouseEvent) => void;
 }
@@ -34,7 +36,7 @@ interface PieArcProps {
 /**
  * A single donut slice: the arc path plus, for non-tiny slices, a leader line
  * out to an external label + value. Pure presentation — interaction is
- * delegated to the `onEnter`/`onLeave`/`onClick` callbacks.
+ * delegated to the `onHover`/`onLeave`/`onClick` callbacks.
  */
 export default function PieArc({
 	slice,
@@ -48,11 +50,12 @@ export default function PieArc({
 	decimalPrecision,
 	labelColor,
 	fill,
-	onEnter,
+	onHover,
 	onLeave,
 	onClick,
 }: PieArcProps): JSX.Element {
-	const { label, value } = slice;
+	const { value } = slice;
+	const label = getSliceDisplayLabel(slice);
 	const [centroidX, centroidY] = centroid;
 	const { labelX, labelY, lineEndX, lineEndY, textAnchor } = getArcGeometry(
 		startAngle,
@@ -71,7 +74,9 @@ export default function PieArc({
 
 	return (
 		<g
-			onMouseEnter={(): void => onEnter(slice, centroidX, centroidY)}
+			data-pie-arc=""
+			onMouseEnter={(event): void => onHover(slice, event)}
+			onMouseMove={(event): void => onHover(slice, event)}
 			onMouseLeave={onLeave}
 			onClick={(event): void => onClick?.(slice, event)}
 		>

frontend/src/lib/visualization/charts/Pie/components/PieArc/__tests__/PieArc.test.tsx

@@ -1,7 +1,7 @@
 import { fireEvent, render, screen } from '@testing-library/react';
 
 import { PieSlice } from 'lib/visualization/charts/types';
-import PieArc from 'lib/visualization/charts/Pie/PieArc';
+import PieArc from 'lib/visualization/charts/Pie/components/PieArc/PieArc';
 
 jest.mock('components/Graph/yAxisConfig', () => ({
 	// Echo the raw value so assertions are deterministic.
@@ -11,12 +11,12 @@ jest.mock('components/Graph/yAxisConfig', () => ({
 const SLICE: PieSlice = { label: 'frontend', value: 50, color: '#f00' };
 
 function renderArc(props: Partial<React.ComponentProps<typeof PieArc>> = {}): {
-	onEnter: jest.Mock;
+	onHover: jest.Mock;
 	onLeave: jest.Mock;
 	onClick: jest.Mock;
 	container: HTMLElement;
 } {
-	const onEnter = jest.fn();
+	const onHover = jest.fn();
 	const onLeave = jest.fn();
 	const onClick = jest.fn();
 	const { container } = render(
@@ -31,14 +31,14 @@ function renderArc(props: Partial<React.ComponentProps<typeof PieArc>> = {}): {
 				totalValue={100}
 				labelColor="#fff"
 				fill="#f00"
-				onEnter={onEnter}
+				onHover={onHover}
 				onLeave={onLeave}
 				onClick={onClick}
 				{...props}
 			/>
 		</svg>,
 	);
-	return { onEnter, onLeave, onClick, container };
+	return { onHover, onLeave, onClick, container };
 }
 
 describe('PieArc', () => {
@@ -69,12 +69,14 @@ describe('PieArc', () => {
 		expect(screen.getByText('a-really-lon...')).toBeInTheDocument();
 	});
 
-	it('fires onEnter with the slice + centroid, and onLeave / onClick', () => {
-		const { onEnter, onLeave, onClick, container } = renderArc();
+	it('fires onHover with the slice on enter and move, and onLeave / onClick', () => {
+		const { onHover, onLeave, onClick, container } = renderArc();
 		const g = container.querySelector('g') as SVGGElement;
 
 		fireEvent.mouseEnter(g);
-		expect(onEnter).toHaveBeenCalledWith(SLICE, 10, 20);
+		fireEvent.mouseMove(g);
+		expect(onHover).toHaveBeenCalledTimes(2);
+		expect(onHover).toHaveBeenCalledWith(SLICE, expect.anything());
 
 		fireEvent.mouseLeave(g);
 		expect(onLeave).toHaveBeenCalledTimes(1);

frontend/src/lib/visualization/charts/Pie/components/PieCenterLabel/PieCenterLabel.tsx

@@ -1,7 +1,7 @@
 import type { PrecisionOption } from 'components/Graph/types';
 import { getYAxisFormattedValue } from 'components/Graph/yAxisConfig';
 
-import { getScaledFontSize } from 'lib/visualization/charts/Pie/utils';
+import { getScaledFontSize } from 'lib/visualization/charts/Pie/utils/geometry';
 
 interface PieCenterLabelProps {
 	/** Sum of the visible slice values, shown in the donut hole. */

frontend/src/lib/visualization/charts/Pie/components/PieCenterLabel/__tests__/PieCenterLabel.test.tsx

@@ -1,7 +1,7 @@
 import { render, screen } from '@testing-library/react';
 import { getYAxisFormattedValue } from 'components/Graph/yAxisConfig';
 
-import PieCenterLabel from 'lib/visualization/charts/Pie/PieCenterLabel';
+import PieCenterLabel from 'lib/visualization/charts/Pie/components/PieCenterLabel/PieCenterLabel';
 
 jest.mock('components/Graph/yAxisConfig', () => ({
 	getYAxisFormattedValue: jest.fn(),

frontend/src/lib/visualization/charts/Pie/components/PieTooltip/PieTooltip.module.scss

@@ -0,0 +1,39 @@
+// Mirrors the uPlot tooltip container (uPlotV2/components/Tooltip).
+.body {
+	display: flex;
+	flex-direction: column;
+	width: 360px;
+	max-width: 80vw;
+	font-family: 'Inter';
+	font-size: 12px;
+	-webkit-font-smoothing: antialiased;
+	color: var(--l2-foreground);
+	background: var(--l2-background);
+	border: 1px solid var(--l2-border);
+	border-radius: 6px;
+	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
+}
+
+.pinned {
+	border-color: var(--ring);
+}
+
+.headerRow {
+	display: flex;
+	align-items: center;
+	justify-content: space-between;
+	gap: var(--spacing-2);
+	padding: var(--spacing-8) var(--spacing-8) 0;
+	font-size: var(--font-size-sm);
+	font-weight: 500;
+}
+
+.activeItem {
+	padding: var(--spacing-4);
+}
+
+.divider {
+	display: block;
+	height: 1px;
+	background-color: var(--l2-border);
+}

frontend/src/lib/visualization/charts/Pie/components/PieTooltip/PieTooltipContent.tsx

@@ -0,0 +1,71 @@
+import type { MouseEvent as ReactMouseEvent } from 'react';
+import cx from 'classnames';
+import TooltipItem from 'lib/uPlotV2/components/Tooltip/components/TooltipItem/TooltipItem';
+import TooltipList from 'lib/uPlotV2/components/Tooltip/components/TooltipList/TooltipList';
+import TooltipPinnedBadge from 'lib/uPlotV2/components/Tooltip/components/TooltipPinnedBadge/TooltipPinnedBadge';
+
+import { PieTooltipData } from 'lib/visualization/charts/Pie/types';
+import PieTooltipFooter from 'lib/visualization/charts/Pie/components/PieTooltip/PieTooltipFooter';
+
+import styles from 'lib/visualization/charts/Pie/components/PieTooltip/PieTooltip.module.scss';
+
+interface PieTooltipContentProps {
+	/** Widget id, for the list's analytics. */
+	id: string;
+	data: PieTooltipData;
+	/** Pinned by a click on a grouped slice: its members become drill-down targets. */
+	isPinned: boolean;
+	canDrilldown: boolean;
+	onMemberClick: (index: number, event: ReactMouseEvent) => void;
+	onUnpin: () => void;
+}
+
+/** Hovered slice's label and value, in the timeseries tooltip's look; a grouped slice also lists its members. */
+export default function PieTooltipContent({
+	id,
+	data,
+	isPinned,
+	canDrilldown,
+	onMemberClick,
+	onUnpin,
+}: PieTooltipContentProps): JSX.Element {
+	const { slice, groupedMembers } = data;
+	const canDrillMember = isPinned && canDrilldown;
+	const showFooter = !!groupedMembers || canDrilldown;
+
+	return (
+		<div
+			className={cx(styles.body, {
+				[styles.pinned]: isPinned,
+			})}
+		>
+			{isPinned && (
+				<div className={styles.headerRow}>
+					<span>{groupedMembers?.length} series</span>
+					<TooltipPinnedBadge />
+				</div>
+			)}
+			<div className={styles.activeItem}>
+				<TooltipItem item={slice} isItemActive />
+			</div>
+			{groupedMembers && (
+				<>
+					<span className={styles.divider} />
+					<TooltipList
+						id={id}
+						content={groupedMembers}
+						onItemClick={canDrillMember ? onMemberClick : undefined}
+					/>
+				</>
+			)}
+			{showFooter && (
+				<PieTooltipFooter
+					isGroup={!!groupedMembers}
+					isPinned={isPinned}
+					canDrilldown={canDrilldown}
+					onUnpin={onUnpin}
+				/>
+			)}
+		</div>
+	);
+}

frontend/src/lib/visualization/charts/Pie/components/PieTooltip/PieTooltipFooter.tsx

@@ -0,0 +1,66 @@
+import { MousePointerClick, X } from '@signozhq/icons';
+import { Button } from '@signozhq/ui/button';
+import { Kbd } from '@signozhq/ui/kbd';
+
+import footerStyles from 'lib/visualization/panels/components/TooltipFooter.module.scss';
+
+interface PieTooltipFooterProps {
+	isGroup: boolean;
+	isPinned: boolean;
+	canDrilldown: boolean;
+	onUnpin: () => void;
+}
+
+/** The timeseries tooltip footer's look, with the pie's click-to-pin hints. */
+export default function PieTooltipFooter({
+	isGroup,
+	isPinned,
+	canDrilldown,
+	onUnpin,
+}: PieTooltipFooterProps): JSX.Element {
+	let clickHint = canDrilldown ? 'Click to drilldown' : null;
+	if (isGroup) {
+		clickHint = canDrilldown
+			? 'Click to pin, then pick a series'
+			: 'Click to pin the tooltip';
+	}
+	if (isPinned) {
+		clickHint = canDrilldown ? 'Click a series to drilldown' : null;
+	}
+
+	return (
+		<div className={footerStyles.footer} data-testid="pie-tooltip-footer">
+			<div className={footerStyles.hintList}>
+				{clickHint && (
+					<div className={footerStyles.hint} data-active="false">
+						<Kbd>
+							<MousePointerClick size={12} />
+						</Kbd>
+						<span>{clickHint}</span>
+					</div>
+				)}
+				{isPinned && (
+					<div className={footerStyles.hint} data-active="false">
+						<span>Press</span>
+						<Kbd>Esc</Kbd>
+						<span>to unpin</span>
+					</div>
+				)}
+			</div>
+
+			{isPinned && (
+				<Button
+					variant="outlined"
+					color="secondary"
+					size="sm"
+					onClick={onUnpin}
+					aria-label="Unpin tooltip"
+					testId="pie-tooltip-unpin"
+					prefix={<X size={10} />}
+				>
+					<span>Unpin</span>
+				</Button>
+			)}
+		</div>
+	);
+}

frontend/src/lib/visualization/charts/Pie/hooks/usePieTooltip.ts

@@ -0,0 +1,205 @@
+import {
+	useCallback,
+	useEffect,
+	useMemo,
+	useState,
+	type MouseEvent as ReactMouseEvent,
+	type RefObject,
+} from 'react';
+import { useTooltip } from '@visx/tooltip';
+
+import { PieChartProps, PieSlice } from 'lib/visualization/charts/types';
+import { PieTooltipData } from 'lib/visualization/charts/Pie/types';
+import { getSliceDisplayLabel } from 'lib/visualization/charts/Pie/utils/slices';
+
+// Keeps the cursor off the tooltip so it never steals the hover.
+const TOOLTIP_CURSOR_OFFSET = 12;
+
+interface UsePieTooltipArgs {
+	/** The drawn slices, Other included. */
+	slices: PieSlice[];
+	/** The chart's root: a click on its own arcs resolves the pin, one anywhere else unpins. */
+	chartRef: RefObject<HTMLElement>;
+	formatValue: (value: number) => string;
+	setFocusedKey: (key: string | null) => void;
+	onSliceClick: PieChartProps['onSliceClick'];
+}
+
+interface UsePieTooltipResult {
+	tooltipOpen: boolean;
+	tooltipTop?: number;
+	tooltipLeft?: number;
+	tooltipData?: PieTooltipData;
+	isPinned: boolean;
+	unpin: () => void;
+	handleSliceHover: (
+		slice: PieSlice,
+		event: ReactMouseEvent<SVGGElement>,
+	) => void;
+	handleSliceLeave: () => void;
+	handleSliceClick: (slice: PieSlice, event: ReactMouseEvent) => void;
+	handleMemberClick: (index: number, event: ReactMouseEvent) => void;
+}
+
+/**
+ * The Pie tooltip: follows the cursor over an arc, and pins on a grouped slice's click so its
+ * members can be drilled into. Esc or a click outside unpins.
+ */
+export function usePieTooltip({
+	slices,
+	chartRef,
+	formatValue,
+	setFocusedKey,
+	onSliceClick,
+}: UsePieTooltipArgs): UsePieTooltipResult {
+	const {
+		tooltipOpen,
+		tooltipLeft,
+		tooltipTop,
+		tooltipData,
+		hideTooltip,
+		showTooltip,
+	} = useTooltip<PieTooltipData>();
+
+	// A grouped slice's click pins its tooltip so its members can be drilled into.
+	const [pinnedSlice, setPinnedSlice] = useState<PieSlice | null>(null);
+
+	const unpin = useCallback((): void => {
+		setPinnedSlice(null);
+		hideTooltip();
+		setFocusedKey(null);
+	}, [hideTooltip, setFocusedKey]);
+
+	// New data replaces the pinned slice, whose members may no longer be drawn.
+	useEffect(() => {
+		if (pinnedSlice && !slices.includes(pinnedSlice)) {
+			unpin();
+		}
+	}, [slices, pinnedSlice, unpin]);
+
+	useEffect(() => {
+		if (!pinnedSlice) {
+			return undefined;
+		}
+		const onPointerDown = (event: PointerEvent): void => {
+			const target = event.target as Element | null;
+			// This chart's arc clicks resolve the pin themselves (see handleSliceClick).
+			const isOwnArc =
+				!!target?.closest('[data-pie-arc]') && !!chartRef.current?.contains(target);
+			if (isOwnArc || target?.closest('[data-pie-tooltip]')) {
+				return;
+			}
+			unpin();
+		};
+		const onKeyDown = (event: KeyboardEvent): void => {
+			if (event.key === 'Escape') {
+				unpin();
+			}
+		};
+		document.addEventListener('pointerdown', onPointerDown);
+		document.addEventListener('keydown', onKeyDown);
+		return (): void => {
+			document.removeEventListener('pointerdown', onPointerDown);
+			document.removeEventListener('keydown', onKeyDown);
+		};
+	}, [pinnedSlice, unpin, chartRef]);
+
+	// Built once per data change, not on every mouse move.
+	const tooltipDataBySlice = useMemo(
+		() =>
+			new Map<PieSlice, PieTooltipData>(
+				slices.map((slice) => [
+					slice,
+					{
+						slice: {
+							label: getSliceDisplayLabel(slice),
+							value: slice.value,
+							tooltipValue: formatValue(slice.value),
+							color: slice.color,
+							isActive: true,
+						},
+						groupedMembers: slice.groupedMembers?.map((member) => ({
+							label: member.label,
+							value: member.value,
+							tooltipValue: formatValue(member.value),
+							color: member.color,
+							isActive: false,
+						})),
+					},
+				]),
+			),
+		[slices, formatValue],
+	);
+
+	const handleSliceHover = useCallback(
+		(slice: PieSlice, event: ReactMouseEvent<SVGGElement>): void => {
+			if (pinnedSlice) {
+				return;
+			}
+			const svgRect = event.currentTarget.ownerSVGElement?.getBoundingClientRect();
+			showTooltip({
+				tooltipData: tooltipDataBySlice.get(slice),
+				tooltipTop: event.clientY - (svgRect?.top ?? 0) + TOOLTIP_CURSOR_OFFSET,
+				tooltipLeft: event.clientX - (svgRect?.left ?? 0) + TOOLTIP_CURSOR_OFFSET,
+			});
+			setFocusedKey(slice.label);
+		},
+		[pinnedSlice, showTooltip, setFocusedKey, tooltipDataBySlice],
+	);
+
+	const handleSliceLeave = useCallback((): void => {
+		if (pinnedSlice) {
+			return;
+		}
+		hideTooltip();
+		setFocusedKey(null);
+	}, [pinnedSlice, hideTooltip, setFocusedKey]);
+
+	const handleSliceClick = useCallback(
+		(slice: PieSlice, event: ReactMouseEvent): void => {
+			if (slice.groupedMembers) {
+				if (pinnedSlice === slice) {
+					unpin();
+				} else {
+					setPinnedSlice(slice);
+				}
+				return;
+			}
+			if (pinnedSlice) {
+				unpin();
+			}
+			onSliceClick?.(slice, { x: event.clientX, y: event.clientY });
+		},
+		[pinnedSlice, unpin, onSliceClick],
+	);
+
+	const handleMemberClick = useCallback(
+		(index: number, event: ReactMouseEvent): void => {
+			const member = pinnedSlice?.groupedMembers?.[index];
+			const tooltipRect = (event.currentTarget as Element)
+				.closest('[data-pie-tooltip]')
+				?.getBoundingClientRect();
+			unpin();
+			if (member) {
+				onSliceClick?.(member, {
+					x: tooltipRect?.left ?? event.clientX,
+					y: tooltipRect?.top ?? event.clientY,
+				});
+			}
+		},
+		[pinnedSlice, unpin, onSliceClick],
+	);
+
+	return {
+		tooltipOpen,
+		tooltipTop,
+		tooltipLeft,
+		tooltipData,
+		isPinned: !!pinnedSlice,
+		unpin,
+		handleSliceHover,
+		handleSliceLeave,
+		handleSliceClick,
+		handleMemberClick,
+	};
+}

frontend/src/lib/visualization/charts/Pie/types.ts

@@ -4,6 +4,8 @@
  * (PieSlice, PieChartProps) live in the parent charts/types.ts.
  */
 
+import type { TooltipContentItem } from 'lib/uPlotV2/components/types';
+
 export interface ScaledFontSizeArgs {
 	text: string;
 	baseSize: number;
@@ -39,7 +41,7 @@ export interface ParsedRgb {
 
 /** Resolved tooltip payload shown when a slice is hovered. */
 export interface PieTooltipData {
-	label: string;
-	value: string;
-	color: string;
+	slice: TooltipContentItem;
+	/** Grouped slice only: every member, largest first. */
+	groupedMembers?: TooltipContentItem[];
 }

frontend/src/lib/visualization/charts/Pie/utils/__tests__/colors.test.ts

@@ -0,0 +1,35 @@
+import {
+	getFillColor,
+	lightenColor,
+} from 'lib/visualization/charts/Pie/utils/colors';
+
+describe('Pie colors', () => {
+	describe('lightenColor', () => {
+		it('converts a #rrggbb hex to rgba at the given opacity', () => {
+			expect(lightenColor('#ff0000', 0.4)).toBe('rgba(255, 0, 0, 0.4)');
+		});
+
+		it('accepts hex without a leading #', () => {
+			expect(lightenColor('00ff00', 0.4)).toBe('rgba(0, 255, 0, 0.4)');
+		});
+
+		it('returns the original colour when it is not parseable hex', () => {
+			expect(lightenColor('rgba(0,0,0,1)', 0.4)).toBe('rgba(0,0,0,1)');
+			expect(lightenColor('red', 0.4)).toBe('red');
+		});
+	});
+
+	describe('getFillColor', () => {
+		it('returns the colour unchanged when nothing is active', () => {
+			expect(getFillColor('#ff0000', null)).toBe('#ff0000');
+		});
+
+		it('returns the colour unchanged for the active slice', () => {
+			expect(getFillColor('#ff0000', '#ff0000')).toBe('#ff0000');
+		});
+
+		it('dims non-active slices to 40% opacity', () => {
+			expect(getFillColor('#00ff00', '#ff0000')).toBe('rgba(0, 255, 0, 0.4)');
+		});
+	});
+});

frontend/src/lib/visualization/charts/Pie/utils/__tests__/geometry.test.ts

@@ -1,12 +1,10 @@
 import {
 	getArcGeometry,
 	getDonutGeometry,
-	getFillColor,
 	getScaledFontSize,
-	lightenColor,
-} from 'lib/visualization/charts/Pie/utils';
+} from 'lib/visualization/charts/Pie/utils/geometry';
 
-describe('Pie utils', () => {
+describe('Pie geometry', () => {
 	describe('getDonutGeometry', () => {
 		it('keeps the label anchor inside the box (reserves room for leader labels)', () => {
 			const { radius } = getDonutGeometry(400, 300);
@@ -98,33 +96,4 @@ describe('Pie utils', () => {
 			expect(g.textAnchor).toBe('end');
 		});
 	});
-
-	describe('lightenColor', () => {
-		it('converts a #rrggbb hex to rgba at the given opacity', () => {
-			expect(lightenColor('#ff0000', 0.4)).toBe('rgba(255, 0, 0, 0.4)');
-		});
-
-		it('accepts hex without a leading #', () => {
-			expect(lightenColor('00ff00', 0.4)).toBe('rgba(0, 255, 0, 0.4)');
-		});
-
-		it('returns the original colour when it is not parseable hex', () => {
-			expect(lightenColor('rgba(0,0,0,1)', 0.4)).toBe('rgba(0,0,0,1)');
-			expect(lightenColor('red', 0.4)).toBe('red');
-		});
-	});
-
-	describe('getFillColor', () => {
-		it('returns the colour unchanged when nothing is active', () => {
-			expect(getFillColor('#ff0000', null)).toBe('#ff0000');
-		});
-
-		it('returns the colour unchanged for the active slice', () => {
-			expect(getFillColor('#ff0000', '#ff0000')).toBe('#ff0000');
-		});
-
-		it('dims non-active slices to 40% opacity', () => {
-			expect(getFillColor('#00ff00', '#ff0000')).toBe('rgba(0, 255, 0, 0.4)');
-		});
-	});
 });

frontend/src/lib/visualization/charts/Pie/utils/__tests__/groupPieSlices.test.ts

@@ -0,0 +1,129 @@
+import type { PieSlice } from 'lib/visualization/charts/types';
+
+import {
+	groupPieSlices,
+	OTHER_SLICE_LABEL,
+} from 'lib/visualization/charts/Pie/utils/groupPieSlices';
+
+const slice = (label: string, value: number): PieSlice => ({
+	label,
+	value,
+	color: '#000000',
+	queryName: 'A',
+});
+
+const group = (slices: PieSlice[]): PieSlice[] => groupPieSlices(slices, true);
+
+describe('groupPieSlices', () => {
+	it('folds a long tail into a trailing Other, keeping kept-slice order', () => {
+		const slices = [
+			slice('b', 400),
+			slice('tail1', 2),
+			slice('a', 500),
+			slice('tail2', 4),
+			slice('tail3', 1),
+		];
+
+		const result = group(slices);
+
+		expect(result.map((s) => [s.label, s.value])).toStrictEqual([
+			['b', 400],
+			['a', 500],
+			[OTHER_SLICE_LABEL, 7],
+		]);
+		expect(result[2].groupedMembers?.map((s) => s.label)).toStrictEqual([
+			'tail2',
+			'tail1',
+			'tail3',
+		]);
+		expect(result[2].queryName).toBeUndefined();
+	});
+
+	it('caps a flat pie at 14 slices + Other', () => {
+		const slices = Array.from({ length: 30 }, (_, i) => slice(`s${i}`, 100 - i));
+
+		const result = group(slices);
+
+		expect(result).toHaveLength(15);
+		expect(result.slice(0, 14).map((s) => s.label)).toStrictEqual(
+			slices.slice(0, 14).map((s) => s.label),
+		);
+		expect(result[14].label).toBe(OTHER_SLICE_LABEL);
+		expect(result[14].groupedMembers).toHaveLength(16);
+	});
+
+	it('keeps exactly 15 large slices ungrouped', () => {
+		const slices = Array.from({ length: 15 }, (_, i) => slice(`s${i}`, 10));
+
+		expect(group(slices)).toBe(slices);
+	});
+
+	it('leaves a single small slice under its own name', () => {
+		const slices = [slice('a', 500), slice('b', 400), slice('tiny', 1)];
+
+		expect(group(slices)).toBe(slices);
+	});
+
+	it('keeps a dominant Other at its true size and conserves the total', () => {
+		const slices = [
+			slice('a', 300),
+			...Array.from({ length: 400 }, (_, i) => slice(`t${i}`, 1)),
+		];
+
+		const result = group(slices);
+
+		expect(result.map((s) => s.label)).toStrictEqual(['a', OTHER_SLICE_LABEL]);
+		expect(result[1].value).toBe(400);
+		expect(result[1].groupedMembers).toHaveLength(400);
+	});
+
+	it('keeps tiny slices grouped past 15 series', () => {
+		const slices = [
+			slice('a', 3000),
+			slice('b', 2000),
+			slice('c', 1000),
+			...Array.from({ length: 13 }, (_, i) => slice(`t${i}`, 1)),
+		];
+
+		const result = group(slices);
+
+		expect(result.map((s) => s.label)).toStrictEqual([
+			'a',
+			'b',
+			'c',
+			OTHER_SLICE_LABEL,
+		]);
+		expect(result[3].groupedMembers).toHaveLength(13);
+	});
+
+	it('keeps 14 slices when every slice is under the share threshold', () => {
+		// 200 × 0.5%: grouping by share alone would leave one 100% Other.
+		const slices = Array.from({ length: 200 }, (_, i) => slice(`s${i}`, 5));
+
+		const result = group(slices);
+
+		expect(result.slice(0, 14).map((s) => s.label)).toStrictEqual(
+			slices.slice(0, 14).map((s) => s.label),
+		);
+		expect(result[14].label).toBe(OTHER_SLICE_LABEL);
+		expect(result[14].groupedMembers).toHaveLength(186);
+		expect(result[14].value).toBe(930);
+	});
+
+	it('breaks ties by input order', () => {
+		const slices = Array.from({ length: 20 }, (_, i) => slice(`s${i}`, 5));
+
+		const result = group(slices);
+
+		expect(result.slice(0, 14).map((s) => s.label)).toStrictEqual(
+			slices.slice(0, 14).map((s) => s.label),
+		);
+		expect(result[14].groupedMembers?.map((s) => s.label)).toStrictEqual(
+			slices.slice(14).map((s) => s.label),
+		);
+	});
+
+	it('returns an empty pie unchanged', () => {
+		expect(group([])).toStrictEqual([]);
+	});
+});

frontend/src/lib/visualization/charts/Pie/utils/__tests__/slices.test.ts

@@ -0,0 +1,26 @@
+import type { PieSlice } from 'lib/visualization/charts/types';
+import { compareSlices } from 'lib/visualization/charts/Pie/utils/slices';
+
+describe('Pie slices', () => {
+	describe('compareSlices', () => {
+		it('orders largest first with the grouped slice last', () => {
+			const slice = (label: string, value: number, grouped = false): PieSlice => ({
+				label,
+				value,
+				color: '#000000',
+				...(grouped ? { groupedMembers: [] } : {}),
+			});
+			const slices = [
+				slice('small', 1),
+				slice('Other', 500, true),
+				slice('big', 100),
+			];
+
+			expect([...slices].sort(compareSlices).map((s) => s.label)).toStrictEqual([
+				'big',
+				'small',
+				'Other',
+			]);
+		});
+	});
+});

frontend/src/lib/visualization/charts/Pie/utils/colors.ts

@@ -0,0 +1,41 @@
+import { ParsedRgb } from 'lib/visualization/charts/Pie/types';
+
+// Parses `#rrggbb` into its components. Returns null for anything else (e.g. an
+// already-rgba string), letting callers fall back to the original colour.
+function hexToRgb(color: string): ParsedRgb | null {
+	const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(color);
+	return result
+		? {
+				r: parseInt(result[1], 16),
+				g: parseInt(result[2], 16),
+				b: parseInt(result[3], 16),
+			}
+		: null;
+}
+
+/**
+ * Returns an rgba() string for `color` at the given opacity. Used to dim the
+ * non-hovered slices. Falls back to the original colour if it can't be parsed.
+ */
+export function lightenColor(color: string, opacity: number): string {
+	const rgb = hexToRgb(color);
+	if (!rgb) {
+		return color;
+	}
+	return `rgba(${rgb.r}, ${rgb.g}, ${rgb.b}, ${opacity})`;
+}
+
+/**
+ * Resolves the fill for a slice given the currently-hovered slice colour:
+ * everything but the active slice dims to 40% opacity. With nothing hovered
+ * (`activeColor === null`) every slice keeps its full colour.
+ */
+export function getFillColor(
+	color: string,
+	activeColor: string | null,
+): string {
+	if (activeColor === null) {
+		return color;
+	}
+	return activeColor === color ? color : lightenColor(color, 0.4);
+}

frontend/src/lib/visualization/charts/Pie/utils/geometry.ts

@@ -1,12 +1,8 @@
-/**
- * Pure presentation helpers for the Pie chart. Kept out of the component file
- * so the renderer stays declarative (per the one-component-per-file rule).
- */
+/** Donut, label and font sizing for the Pie chart. */
 
 import {
 	ArcGeometry,
 	DonutGeometry,
-	ParsedRgb,
 	ScaledFontSizeArgs,
 } from 'lib/visualization/charts/Pie/types';
 
@@ -77,43 +73,3 @@ export function getArcGeometry(
 		textAnchor: Math.sin(angle) > 0 ? 'start' : 'end',
 	};
 }
-
-// Parses `#rrggbb` into its components. Returns null for anything else (e.g. an
-// already-rgba string), letting callers fall back to the original colour.
-function hexToRgb(color: string): ParsedRgb | null {
-	const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(color);
-	return result
-		? {
-				r: parseInt(result[1], 16),
-				g: parseInt(result[2], 16),
-				b: parseInt(result[3], 16),
-			}
-		: null;
-}
-
-/**
- * Returns an rgba() string for `color` at the given opacity. Used to dim the
- * non-hovered slices. Falls back to the original colour if it can't be parsed.
- */
-export function lightenColor(color: string, opacity: number): string {
-	const rgb = hexToRgb(color);
-	if (!rgb) {
-		return color;
-	}
-	return `rgba(${rgb.r}, ${rgb.g}, ${rgb.b}, ${opacity})`;
-}
-
-/**
- * Resolves the fill for a slice given the currently-hovered slice colour:
- * everything but the active slice dims to 40% opacity. With nothing hovered
- * (`activeColor === null`) every slice keeps its full colour.
- */
-export function getFillColor(
-	color: string,
-	activeColor: string | null,
-): string {
-	if (activeColor === null) {
-		return color;
-	}
-	return activeColor === color ? color : lightenColor(color, 0.4);
-}

frontend/src/lib/visualization/charts/Pie/utils/groupPieSlices.ts

@@ -0,0 +1,40 @@
+import { Color } from '@signozhq/design-tokens';
+import type { PieSlice } from 'lib/visualization/charts/types';
+
+export const OTHER_SLICE_LABEL = 'Other';
+
+const MIN_SHARE = 0.01;
+const MAX_SLICES = 15;
+const MIN_OTHER_MEMBERS = 2;
+
+/**
+ * Folds slices at or under `MIN_SHARE`, plus any past `MAX_SLICES` (Other included), into one
+ * trailing "Other" slice. When no slice clears `MIN_SHARE`, the largest `MAX_SLICES - 1` stay so
+ * the pie never collapses into a single Other. Kept slices keep their order. No-op when fewer
+ * than two would fold.
+ */
+export function groupPieSlices(
+	slices: PieSlice[],
+	isDarkMode: boolean,
+): PieSlice[] {
+	const total = slices.reduce((sum, slice) => sum + slice.value, 0);
+	const sorted = [...slices].sort((a, b) => b.value - a.value);
+	const aboveShare = sorted.filter(
+		(slice) => slice.value / total > MIN_SHARE,
+	).length;
+	const keptCount = Math.min(aboveShare || MAX_SLICES - 1, MAX_SLICES - 1);
+
+	const groupedMembers = sorted.slice(keptCount);
+	if (groupedMembers.length < MIN_OTHER_MEMBERS) {
+		return slices;
+	}
+
+	const kept = new Set(sorted.slice(0, keptCount));
+	const other: PieSlice = {
+		label: OTHER_SLICE_LABEL,
+		value: groupedMembers.reduce((sum, slice) => sum + slice.value, 0),
+		color: isDarkMode ? Color.BG_SLATE_50 : Color.BG_VANILLA_400,
+		groupedMembers,
+	};
+	return [...slices.filter((slice) => kept.has(slice)), other];
+}

frontend/src/lib/visualization/charts/Pie/utils/slices.ts

@@ -0,0 +1,15 @@
+import type { PieSlice } from 'lib/visualization/charts/types';
+
+/** Grouped slices read "Other (n)"; `label` stays the key for colours and visibility. */
+export function getSliceDisplayLabel(slice: PieSlice): string {
+	return slice.groupedMembers
+		? `${slice.label} (${slice.groupedMembers.length})`
+		: slice.label;
+}
+
+/** Arc order: largest first, with a grouped slice always last so it closes the circle. */
+export function compareSlices(a: PieSlice, b: PieSlice): number {
+	return (
+		Number(!!a.groupedMembers) - Number(!!b.groupedMembers) || b.value - a.value
+	);
+}

frontend/src/lib/visualization/charts/types.ts

@@ -1,5 +1,4 @@
 import uPlot from 'uplot';
-import type { MouseEvent as ReactMouseEvent } from 'react';
 import { Timezone } from 'components/CustomTimePicker/timezoneUtils';
 import { PrecisionOption } from 'components/Graph/types';
 import {
@@ -180,6 +179,8 @@ export interface PieSlice {
 	queryName?: string;
 	/** Group-by key→value of the slice's source row, used to build drill-down filters. */
 	labels?: Record<string, string>;
+	/** Slices folded into this one, largest first. Present only on the "Other" slice. */
+	groupedMembers?: PieSlice[];
 }
 
 /**
@@ -200,8 +201,11 @@ export interface PieChartProps {
 	 * (shared GRAPH_VISIBILITY_STATES, keyed by label). Omit to disable persistence.
 	 */
 	id?: string;
-	/** Fired when a slice's arc is clicked; carries the DOM event for popover positioning. */
-	onSliceClick?: (slice: PieSlice, event: ReactMouseEvent) => void;
+	/**
+	 * Fired when a slice is clicked, with the viewport point to anchor the drill-down popover:
+	 * the cursor for an arc, the pinned tooltip's corner for a grouped slice's member.
+	 */
+	onSliceClick?: (slice: PieSlice, anchor: { x: number; y: number }) => void;
 	'data-testid'?: string;
 }
 

frontend/src/pages/DashboardPage/DashboardContainer/DashboardPageToolbar/JsonEditorDrawer/JsonEditorDrawer.tsx

@@ -107,13 +107,9 @@ function JsonEditorDrawer({
 	} else if (!readOnly && !validity.valid) {
 		applyDisabledReason = 'Fix the JSON errors first';
 	}
-	const errorText = validity.message ?? 'Invalid JSON';
-	let validationText = `Valid JSON · ${validity.lineCount} lines`;
-	if (!validity.valid) {
-		validationText = validity.errorLine
-			? `Line ${validity.errorLine} · ${errorText}`
-			: errorText;
-	}
+	const validationText = validity.valid
+		? `Valid JSON · ${validity.lineCount} lines`
+		: `Line ${validity.errorLine ?? '?'} · ${validity.message ?? 'Invalid JSON'}`;
 	const plural = (n: number): string => (n === 1 ? '' : 's');
 	const danglingWarning =
 		danglingPanelIds.length > 0
@@ -139,17 +135,15 @@ function JsonEditorDrawer({
 			footer={
 				<div className={styles.footer}>
 					<div className={styles.footerStatus}>
-						<Tooltip title={validity.valid ? undefined : validationText}>
-							<Typography.Text
-								className={cx(styles.validation, {
-									[styles.validationValid]: validity.valid,
-									[styles.validationInvalid]: !validity.valid,
-								})}
-								data-testid="json-editor-validation"
-							>
-								{validationText}
-							</Typography.Text>
-						</Tooltip>
+						<Typography.Text
+							className={cx(styles.validation, {
+								[styles.validationValid]: validity.valid,
+								[styles.validationInvalid]: !validity.valid,
+							})}
+							data-testid="json-editor-validation"
+						>
+							{validationText}
+						</Typography.Text>
 						{danglingWarning && (
 							<Tooltip title={danglingPanelIds.join(', ')}>
 								<span

frontend/src/pages/DashboardPage/DashboardContainer/DashboardPageToolbar/JsonEditorDrawer/__tests__/JsonEditorDrawer.test.tsx

@@ -1,4 +1,4 @@
-import { fireEvent, render, screen, userEvent } from 'tests/test-utils';
+import { fireEvent, render, screen } from 'tests/test-utils';
 import type { DashboardtypesGettableDashboardV2DTO } from 'api/generated/services/sigNoz.schemas';
 
 import JsonEditorDrawer from '../JsonEditorDrawer';
@@ -170,36 +170,6 @@ describe('JsonEditorDrawer', () => {
 		);
 	});
 
-	it('shows only the message when the error line is unknown', () => {
-		mockUseJsonEditor.mockReturnValue(
-			hookValue({
-				validity: { valid: false, lineCount: 4, message: 'Bad value' },
-			}),
-		);
-		render(<JsonEditorDrawer dashboard={dashboard} isOpen onClose={jest.fn()} />);
-
-		expect(screen.getByTestId('json-editor-validation')).toHaveTextContent(
-			/^Bad value$/,
-		);
-	});
-
-	it('shows the whole error on hover', async () => {
-		const message = 'A long error that the footer cuts off';
-		mockUseJsonEditor.mockReturnValue(
-			hookValue({
-				validity: { valid: false, lineCount: 4, errorLine: 2, message },
-			}),
-		);
-		const user = userEvent.setup({ pointerEventsCheck: 0 });
-		render(<JsonEditorDrawer dashboard={dashboard} isOpen onClose={jest.fn()} />);
-
-		await user.hover(screen.getByTestId('json-editor-validation'));
-
-		await expect(screen.findByRole('tooltip')).resolves.toHaveTextContent(
-			`Line 2 · ${message}`,
-		);
-	});
-
 	it('disables Apply when not dirty, invalid, or saving', () => {
 		mockUseJsonEditor.mockReturnValue(hookValue({ isDirty: false }));
 		const { rerender } = render(

frontend/src/pages/DashboardPage/DashboardContainer/DashboardPageToolbar/JsonEditorDrawer/__tests__/useJsonEditor.test.tsx

@@ -95,54 +95,6 @@ describe('useJsonEditor', () => {
 		expect(result.current.isDirty).toBe(true);
 	});
 
-	const withDuration = (duration: unknown): string =>
-		JSON.stringify({ ...redacted, spec: { ...redacted.spec, duration } });
-
-	it.each(['1s', '90s', '500ms', '0m', 'abc', 30])(
-		'rejects a spec.duration of %p the time picker cannot open',
-		(duration) => {
-			const { result } = renderHook(() =>
-				useJsonEditor({ dashboard, isOpen: true, onApplied: jest.fn() }),
-			);
-
-			act(() => result.current.setDraft(withDuration(duration)));
-
-			expect(result.current.validity).toStrictEqual({
-				valid: false,
-				lineCount: 1,
-				errorLine: 1,
-				message:
-					'"spec.duration" must be a whole number of minutes above zero, like 30m, 6h or 1d. The time picker has no seconds.',
-			});
-		},
-	);
-
-	it.each([
-		['spec.duration', '{\n  "spec": {\n    "duration": "1s"\n  }\n}', 3],
-		['image', '{\n  "spec": {},\n  "image": "https://x.io/a.png"\n}', 3],
-	])('points at the line of an invalid %s', (_field, draft, errorLine) => {
-		const { result } = renderHook(() =>
-			useJsonEditor({ dashboard, isOpen: true, onApplied: jest.fn() }),
-		);
-
-		act(() => result.current.setDraft(draft));
-
-		expect(result.current.validity.errorLine).toBe(errorLine);
-	});
-
-	it.each(['', '30m', '1h30m', '60s', '1y'])(
-		'accepts a spec.duration of %p',
-		(duration) => {
-			const { result } = renderHook(() =>
-				useJsonEditor({ dashboard, isOpen: true, onApplied: jest.fn() }),
-			);
-
-			act(() => result.current.setDraft(withDuration(duration)));
-
-			expect(result.current.validity.valid).toBe(true);
-		},
-	);
-
 	it('format() pretty-prints valid JSON and leaves invalid JSON untouched', () => {
 		const { result } = renderHook(() =>
 			useJsonEditor({ dashboard, isOpen: true, onApplied: jest.fn() }),

frontend/src/pages/DashboardPage/DashboardContainer/DashboardPageToolbar/JsonEditorDrawer/lineOfJsonEntry.ts

@@ -1,15 +0,0 @@
-import { escapeRegExp } from 'lodash-es';
-
-// ponytail: a text match, not a JSON path, so an identical `"key": value` earlier
-// in the document wins. Switch to a JSON tree parser (jsonc-parser) if that bites.
-export function lineOfJsonEntry(
-	source: string,
-	key: string,
-	value: unknown,
-): number | undefined {
-	const entry = new RegExp(
-		`"${escapeRegExp(key)}"\\s*:\\s*${escapeRegExp(JSON.stringify(value))}`,
-	);
-	const index = source.search(entry);
-	return index < 0 ? undefined : source.slice(0, index).split('\n').length;
-}

frontend/src/pages/DashboardPage/DashboardContainer/DashboardPageToolbar/JsonEditorDrawer/useJsonEditor.ts

@@ -12,10 +12,8 @@ import { toAPIError } from 'utils/errorUtils';
 
 import { dashboardToUpdatable } from './dashboardToUpdatable';
 import { findPanelLayoutIssues } from './danglingPanels';
-import { lineOfJsonEntry } from './lineOfJsonEntry';
 import { compactSpecLayouts } from '../../layoutCompaction';
 import { isValidDashboardImage } from '../../dashboardIcons';
-import { dashboardDurationError } from '../../utils/dashboardDuration';
 import { useDashboardStore } from '../../store/useDashboardStore';
 
 export interface JsonValidity {
@@ -111,7 +109,7 @@ export function useJsonEditor({
 
 	const validity = useMemo<JsonValidity>(() => {
 		const lineCount = draft.split('\n').length;
-		let parsed: { image?: unknown; spec?: { duration?: unknown } };
+		let parsed: { image?: unknown };
 		try {
 			parsed = JSON.parse(draft);
 		} catch (error) {
@@ -133,21 +131,10 @@ export function useJsonEditor({
 			return {
 				valid: false,
 				lineCount,
-				errorLine: lineOfJsonEntry(draft, 'image', image),
 				message:
 					'"image" must be an /assets/Icons/<name> or /assets/Logos/<name> path, or a base64 image data URI',
 			};
 		}
-		const duration = parsed.spec?.duration;
-		const durationError = dashboardDurationError(duration);
-		if (durationError) {
-			return {
-				valid: false,
-				lineCount,
-				errorLine: lineOfJsonEntry(draft, 'duration', duration),
-				message: durationError,
-			};
-		}
 		return { valid: true, lineCount };
 	}, [draft]);
 

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Overview/DefaultTimeRange/DefaultTimeRange.module.scss

@@ -1,30 +0,0 @@
-.infoItemContainer {
-	display: flex;
-	flex-direction: column;
-	gap: 4px;
-}
-
-.infoTitle {
-	color: var(--l2-foreground);
-}
-
-.defaultTimeRangeInput {
-	[data-radix-popper-content-wrapper] {
-		z-index: 1100 !important;
-	}
-
-	// Radix sets --radix-select-trigger-width on the content element (the wrapper's
-	// child), so match it there to make the dropdown take the trigger's width.
-	[data-radix-popper-content-wrapper] > * {
-		width: var(--radix-select-trigger-width);
-		min-width: var(--radix-select-trigger-width);
-	}
-}
-
-.defaultTimeRangeSelect {
-	width: 100%;
-}
-
-.infoHint {
-	color: var(--l3-foreground);
-}

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Overview/DefaultTimeRange/DefaultTimeRange.tsx

@@ -1,41 +0,0 @@
-import { SelectSimple } from '@signozhq/ui/select';
-import { Typography } from '@signozhq/ui/typography';
-
-import { buildDefaultTimeRangeItems, DEFAULT_TIME_RANGE_UNSET } from '../utils';
-import settingsStyles from '../../DashboardSettings.module.scss';
-import styles from './DefaultTimeRange.module.scss';
-
-interface DefaultTimeRangeProps {
-	value: string;
-	onChange: (value: string) => void;
-}
-
-function DefaultTimeRange({
-	value,
-	onChange,
-}: DefaultTimeRangeProps): JSX.Element {
-	return (
-		<div className={settingsStyles.settingsCard}>
-			<div className={styles.infoItemContainer}>
-				<Typography className={styles.infoTitle}>Default time range</Typography>
-				<section className={styles.defaultTimeRangeInput}>
-					<SelectSimple
-						className={styles.defaultTimeRangeSelect}
-						testId="dashboard-default-time-range"
-						items={buildDefaultTimeRangeItems(value)}
-						value={value && value !== '30m' ? value : DEFAULT_TIME_RANGE_UNSET}
-						withPortal={false}
-						onChange={(value): void =>
-							onChange(value === DEFAULT_TIME_RANGE_UNSET ? '' : (value as string))
-						}
-					/>
-				</section>
-				<Typography className={styles.infoHint}>
-					Applies by default when a viewer opens the dashboard for the first time.
-				</Typography>
-			</div>
-		</div>
-	);
-}
-
-export default DefaultTimeRange;

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Overview/__tests__/DefaultTimeRange.test.tsx

@@ -1,131 +0,0 @@
-import type { DashboardtypesGettableDashboardV2DTO } from 'api/generated/services/sigNoz.schemas';
-import { DashboardtypesSourceDTO } from 'api/generated/services/sigNoz.schemas';
-import { render, screen, userEvent, waitFor } from 'tests/test-utils';
-
-import Overview from '../index';
-
-const mockPatchAsync = jest.fn();
-jest.mock('../../../hooks/useOptimisticPatch', () => ({
-	useOptimisticPatch: (): { patchAsync: jest.Mock; isPatching: boolean } => ({
-		patchAsync: mockPatchAsync,
-		isPatching: false,
-	}),
-}));
-
-jest.mock('../CrossPanelSync/CrossPanelSync', () => ({
-	__esModule: true,
-	default: (): null => null,
-}));
-
-function buildDashboard(
-	duration?: string,
-): DashboardtypesGettableDashboardV2DTO {
-	return {
-		id: 'dash-1',
-		name: 'D',
-		orgId: 'org',
-		source: DashboardtypesSourceDTO.user,
-		locked: false,
-		schemaVersion: 'v6',
-		tags: [],
-		updatedAt: '2026-01-01T00:00:00Z',
-		spec: {
-			display: { name: 'D' },
-			panels: {},
-			layouts: [],
-			variables: [],
-			duration,
-		},
-	};
-}
-
-describe('Dashboard settings - default time range', () => {
-	const user = userEvent.setup({ pointerEventsCheck: 0 });
-
-	async function selectOption(label: string): Promise<void> {
-		await user.click(screen.getByTestId('dashboard-default-time-range'));
-		await user.click(await screen.findByText(label));
-	}
-
-	async function save(): Promise<void> {
-		await user.click(await screen.findByTestId('save-dashboard-config'));
-	}
-
-	beforeEach(() => {
-		mockPatchAsync.mockReset();
-		mockPatchAsync.mockResolvedValue(undefined);
-	});
-
-	it('shows the stored window and patches a new one', async () => {
-		render(<Overview dashboard={buildDashboard('30m')} />);
-
-		const trigger = await screen.findByTestId('dashboard-default-time-range');
-		expect(trigger).toHaveTextContent('Default (Last 30 minutes)');
-
-		await selectOption('Last 1 hour');
-
-		await expect(screen.findByText('1 unsaved change')).resolves.toBeVisible();
-
-		await save();
-
-		await waitFor(() => {
-			expect(mockPatchAsync).toHaveBeenCalledWith([
-				{ op: 'replace', path: '/spec/duration', value: '1h' },
-			]);
-		});
-	});
-
-	it('offers the 30-minute default once', async () => {
-		render(<Overview dashboard={buildDashboard('1h')} />);
-
-		await user.click(await screen.findByTestId('dashboard-default-time-range'));
-
-		expect(
-			screen.getByRole('option', { name: 'Default (Last 30 minutes)' }),
-		).toBeInTheDocument();
-		expect(
-			screen.queryByRole('option', { name: 'Last 30 minutes', exact: true }),
-		).not.toBeInTheDocument();
-	});
-
-	it('patches an empty window when the setting is cleared', async () => {
-		render(<Overview dashboard={buildDashboard('1h')} />);
-
-		await selectOption('Default (Last 30 minutes)');
-		await save();
-
-		await waitFor(() => {
-			expect(mockPatchAsync).toHaveBeenCalledWith([
-				{ op: 'replace', path: '/spec/duration', value: '' },
-			]);
-		});
-	});
-
-	it.each([
-		['2h', 'Last 2h'],
-		['1s', 'Last 1s (opens as 1m)'],
-		['1h30m', 'Last 1h30m (opens as 90m)'],
-		['0m', '0m (not applied)'],
-	])(
-		'labels a stored %s that is not one of the options as "%s"',
-		async (duration, label) => {
-			render(<Overview dashboard={buildDashboard(duration)} />);
-
-			const trigger = await screen.findByTestId('dashboard-default-time-range');
-			expect(trigger).toHaveTextContent(label);
-		},
-	);
-
-	it('does not patch the window when it is untouched', async () => {
-		render(<Overview dashboard={buildDashboard('1h')} />);
-
-		await user.type(await screen.findByTestId('dashboard-name'), 'X');
-		await save();
-
-		await waitFor(() => {
-			expect(mockPatchAsync).toHaveBeenCalledWith([
-				{ op: 'replace', path: '/spec/display/name', value: 'DX' },
-			]);
-		});
-	});
-});

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Overview/index.tsx

@@ -13,7 +13,6 @@ import APIError from 'types/api/error';
 
 import { useOptimisticPatch } from '../../hooks/useOptimisticPatch';
 import CrossPanelSync from './CrossPanelSync/CrossPanelSync';
-import DefaultTimeRange from './DefaultTimeRange/DefaultTimeRange';
 import DashboardInfoForm from './DashboardInfoForm/DashboardInfoForm';
 import UnsavedChangesFooter from './UnsavedChangesFooter/UnsavedChangesFooter';
 import { stringsToTags, tagsToStrings } from './utils';
@@ -32,7 +31,6 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 	const title = dashboard.spec.display.name;
 	const description = dashboard.spec.display.description ?? '';
 	const image = dashboard.image || DEFAULT_DASHBOARD_ICON_PATH;
-	const defaultTimeRange = dashboard.spec.duration ?? '';
 	const tagsAsStrings = useMemo(
 		() => tagsToStrings(dashboard.tags ?? []),
 		[dashboard.tags],
@@ -43,8 +41,6 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 	const [updatedDescription, setUpdatedDescription] =
 		useState<string>(description);
 	const [updatedImage, setUpdatedImage] = useState<string>(image);
-	const [updatedDefaultTimeRange, setUpdatedDefaultTimeRange] =
-		useState<string>(defaultTimeRange);
 	const [isSaving, setIsSaving] = useState<boolean>(false);
 	const [numberOfUnsavedChanges, setNumberOfUnsavedChanges] =
 		useState<number>(0);
@@ -57,7 +53,6 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 		setUpdatedDescription(description);
 		setUpdatedImage(image);
 		setUpdatedTags(tagsAsStrings);
-		setUpdatedDefaultTimeRange(defaultTimeRange);
 		// eslint-disable-next-line react-hooks/exhaustive-deps
 	}, [dashboard.updatedAt]);
 
@@ -107,9 +102,6 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 		if (!isEqual(updatedTags, tagsAsStrings)) {
 			ops.push(replace('/tags', stringsToTags(updatedTags)));
 		}
-		if (updatedDefaultTimeRange !== defaultTimeRange) {
-			ops.push(replace('/spec/duration', updatedDefaultTimeRange));
-		}
 		return ops;
 	}, [
 		updatedTitle,
@@ -121,8 +113,6 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 		dashboard.image,
 		updatedTags,
 		tagsAsStrings,
-		updatedDefaultTimeRange,
-		defaultTimeRange,
 	]);
 
 	const onSaveHandler = useCallback(async (): Promise<void> => {
@@ -145,19 +135,12 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 
 	useEffect(() => {
 		let numberOfUnsavedChanges = 0;
-		const initialValues = [
-			title,
-			description,
-			tagsAsStrings,
-			image,
-			defaultTimeRange,
-		];
+		const initialValues = [title, description, tagsAsStrings, image];
 		const updatedValues = [
 			updatedTitle,
 			updatedDescription,
 			updatedTags,
 			updatedImage,
-			updatedDefaultTimeRange,
 		];
 		initialValues.forEach((val, index) => {
 			if (!isEqual(val, updatedValues[index])) {
@@ -170,12 +153,10 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 		image,
 		tagsAsStrings,
 		title,
-		defaultTimeRange,
 		updatedDescription,
 		updatedImage,
 		updatedTags,
 		updatedTitle,
-		updatedDefaultTimeRange,
 	]);
 
 	const discardHandler = useCallback((): void => {
@@ -183,9 +164,8 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 		setUpdatedImage(image);
 		setUpdatedTags(tagsAsStrings);
 		setUpdatedDescription(description);
-		setUpdatedDefaultTimeRange(defaultTimeRange);
 		void logEvent(DashboardDetailEvents.OverviewDiscarded, { dashboardId: id });
-	}, [title, image, tagsAsStrings, description, defaultTimeRange, id]);
+	}, [title, image, tagsAsStrings, description, id]);
 
 	return (
 		<div className={styles.overviewContent}>
@@ -199,10 +179,6 @@ function Overview({ dashboard }: OverviewProps): JSX.Element {
 				onImageChange={setUpdatedImage}
 				onTagsChange={setUpdatedTags}
 			/>
-			<DefaultTimeRange
-				value={updatedDefaultTimeRange}
-				onChange={setUpdatedDefaultTimeRange}
-			/>
 			<CrossPanelSync dashboardId={id} />
 			{numberOfUnsavedChanges > 0 && (
 				<UnsavedChangesFooter

frontend/src/pages/DashboardPage/DashboardContainer/DashboardSettings/Overview/utils.ts

@@ -1,7 +1,4 @@
 import type { TagtypesPostableTagDTO } from 'api/generated/services/sigNoz.schemas';
-import { RelativeDurationOptions } from 'container/TopNav/DateTimeSelectionV2/constants';
-
-import { toPickerRelativeTime } from '../../utils/dashboardDuration';
 
 export { parseKeyValueTag } from 'components/TagKeyValueInput/utils';
 
@@ -25,41 +22,3 @@ export function stringsToTags(tagStrings: string[]): TagtypesPostableTagDTO[] {
 		})
 		.filter((t) => t.key.length > 0);
 }
-
-// Radix rejects an empty option value, so "not set" travels through the select
-// under a sentinel and is mapped back to '' on the way out.
-export const DEFAULT_TIME_RANGE_UNSET = '__unset__';
-
-// The default entry represents 30m; the API rejects `1month`, which is not a
-// Prometheus duration.
-const SELECTABLE_DURATIONS = RelativeDurationOptions.filter(
-	(option) => option.value !== '1month' && option.value !== '30m',
-);
-
-function storedDurationLabel(value: string): string {
-	const relativeTime = toPickerRelativeTime(value);
-	if (!relativeTime) {
-		return `${value} (not applied)`;
-	}
-	return relativeTime === value
-		? `Last ${value}`
-		: `Last ${value} (opens as ${relativeTime})`;
-}
-
-// A window set through the API or the JSON editor may sit outside the list;
-// it's appended so the select shows it instead of rendering blank.
-export function buildDefaultTimeRangeItems(
-	value: string,
-): { value: string; label: string }[] {
-	const items = [
-		{ value: DEFAULT_TIME_RANGE_UNSET, label: 'Default (Last 30 minutes)' },
-		...SELECTABLE_DURATIONS.map((option) => ({
-			value: option.value,
-			label: option.label,
-		})),
-	];
-	if (value && value !== '30m' && !items.some((item) => item.value === value)) {
-		items.push({ value, label: storedDurationLabel(value) });
-	}
-	return items;
-}

frontend/src/pages/DashboardPage/DashboardContainer/Panels/kinds/PieChartPanel/Renderer.tsx

@@ -1,8 +1,4 @@
-import {
-	useCallback,
-	useMemo,
-	type MouseEvent as ReactMouseEvent,
-} from 'react';
+import { useCallback, useMemo } from 'react';
 import type { DashboardtypesPieChartPanelSpecDTO } from 'api/generated/services/sigNoz.schemas';
 import Pie from 'lib/visualization/charts/Pie/Pie';
 import type { PieSlice } from 'lib/visualization/charts/types';
@@ -75,14 +71,14 @@ function PiePanelRenderer({
 	);
 
 	const handleSliceClick = useCallback(
-		(slice: PieSlice, event: ReactMouseEvent): void => {
+		(slice: PieSlice, coordinates: { x: number; y: number }): void => {
 			if (!onClick) {
 				return;
 			}
 			const payload = enrichPieClick({
 				slice,
 				builderQueries,
-				coordinates: { x: event.clientX, y: event.clientY },
+				coordinates,
 				timeRange: getPanelTimeRange(data.requestPayload),
 			});
 			if (payload) {

frontend/src/pages/DashboardPage/DashboardContainer/__tests__/defaultTimeInitialization.test.tsx

@@ -1,271 +0,0 @@
-import { StrictMode, type ReactNode } from 'react';
-import type { DashboardtypesGettableDashboardV2DTO } from 'api/generated/services/sigNoz.schemas';
-import { DashboardtypesSourceDTO } from 'api/generated/services/sigNoz.schemas';
-import { LOCALSTORAGE } from 'constants/localStorage';
-import { getCurrentLocation, navigate } from 'lib/router/navigation';
-import { act, render, screen } from 'tests/test-utils';
-import { getUnstableCurrentSearchParams } from 'utils/getUnstableCurrentSearchParams';
-
-import DashboardContainer from '../index';
-
-const mockUpdateTimeInterval = jest.fn();
-jest.mock('store/actions', () => ({
-	...jest.requireActual('store/actions'),
-	UpdateTimeInterval: (...args: unknown[]): (() => void) => {
-		mockUpdateTimeInterval(...args);
-		return (): void => {};
-	},
-}));
-
-const mockSelectorMount = jest.fn();
-const mockPanelMount = jest.fn();
-const mockStore = { resetVariableFetch: jest.fn(), setEditContext: jest.fn() };
-jest.mock('../store/useDashboardStore', () => ({
-	useDashboardStore: (selector: (state: typeof mockStore) => unknown): unknown =>
-		selector(mockStore),
-}));
-jest.mock('../hooks/useResolvedVariables', () => ({
-	useResolvedVariables: jest.fn(),
-}));
-jest.mock('../hooks/useSyncVariablesForSuggestions', () => ({
-	useSyncVariablesForSuggestions: jest.fn(),
-}));
-jest.mock('../hooks/useDashboardStaleCheck', () => ({
-	useDashboardStaleCheck: (): object => ({
-		showPrompt: false,
-		reload: jest.fn(),
-		dismiss: jest.fn(),
-	}),
-}));
-jest.mock('../dashboardIcons', () => ({
-	resolveDashboardImage: (): string => '',
-}));
-jest.mock('react-full-screen', () => ({
-	FullScreen: ({ children }: { children: ReactNode }): ReactNode => children,
-	useFullScreenHandle: (): object => ({ active: false }),
-}));
-jest.mock('../DashboardPageToolbar', () => ({
-	__esModule: true,
-	default: (): JSX.Element => {
-		mockSelectorMount(getUnstableCurrentSearchParams().toString());
-		return <div data-testid="time-selector" />;
-	},
-}));
-jest.mock('../PanelsAndSectionsLayout', () => ({
-	__esModule: true,
-	default: (): JSX.Element => {
-		mockPanelMount(getUnstableCurrentSearchParams().toString());
-		return <div data-testid="panels" />;
-	},
-}));
-jest.mock('../components/DashboardPageHeader/DashboardPageHeader', () => ({
-	__esModule: true,
-	default: (): null => null,
-}));
-jest.mock('../components/LockedIndicator/LockedIndicator', () => ({
-	__esModule: true,
-	default: (): null => null,
-}));
-jest.mock(
-	'../components/DashboardChangedDialog/DashboardChangedDialog',
-	() => ({ __esModule: true, default: (): null => null }),
-);
-jest.mock('container/TopNav/AutoRefreshV2/AutoRefreshTicker', () => ({
-	__esModule: true,
-	default: (): null => null,
-}));
-
-const PATH = '/dashboard/abc';
-const refetch = jest.fn();
-
-function dashboard(
-	duration = '1h',
-	id = 'abc',
-): DashboardtypesGettableDashboardV2DTO {
-	return {
-		id,
-		name: id,
-		orgId: 'org',
-		source: DashboardtypesSourceDTO.user,
-		locked: false,
-		schemaVersion: 'v6',
-		tags: [],
-		spec: {
-			display: { name: id },
-			duration,
-			layouts: [],
-			panels: {},
-			variables: [],
-		},
-	};
-}
-
-function view(data: DashboardtypesGettableDashboardV2DTO): JSX.Element {
-	return (
-		<StrictMode>
-			<DashboardContainer dashboard={data} refetch={refetch} />
-		</StrictMode>
-	);
-}
-
-function mountDashboard(
-	search = '',
-	duration = '1h',
-): ReturnType<typeof render> & {
-	update: (data: DashboardtypesGettableDashboardV2DTO) => void;
-} {
-	const result = render(view(dashboard(duration)), undefined, {
-		initialRoute: `${PATH}${search}`,
-	});
-	return {
-		...result,
-		update: (data): void => result.rerender(view(data)),
-	};
-}
-
-describe('dashboard default time initialization', () => {
-	beforeEach(() => {
-		jest.clearAllMocks();
-		localStorage.clear();
-	});
-
-	it('writes the default before the selector and panels first mount, replacing history', () => {
-		const historyLength = window.history.length;
-		mountDashboard('?variables=selected&tab=overview');
-		expect(screen.getByTestId('time-selector')).toBeInTheDocument();
-		expect(screen.getByTestId('panels')).toBeInTheDocument();
-		for (const mounted of [mockSelectorMount, mockPanelMount]) {
-			expect(mounted).toHaveBeenCalled();
-			for (const [search] of mounted.mock.calls) {
-				expect(new URLSearchParams(search).get('relativeTime')).toBe('1h');
-			}
-		}
-		const params = new URLSearchParams(getCurrentLocation().search);
-		expect(params.get('variables')).toBe('selected');
-		expect(params.get('tab')).toBe('overview');
-		expect(window.history).toHaveLength(historyLength);
-	});
-
-	it.each([
-		'?relativeTime=15m',
-		'?startTime=1000&endTime=2000',
-		'?startTime=1000',
-		'?endTime=2000',
-	])('preserves explicit URL time %s', (search) => {
-		mountDashboard(search);
-		expect(getCurrentLocation().search).toBe(search);
-		expect(mockSelectorMount.mock.calls[0][0]).toBe(search.slice(1));
-	});
-
-	it.each(['1d', JSON.stringify({ startTime: 1000, endTime: 2000 })])(
-		'leaves a saved route preference %s for the shared selector',
-		(saved) => {
-			localStorage.setItem(
-				LOCALSTORAGE.METRICS_TIME_IN_DURATION,
-				JSON.stringify({ [PATH]: saved }),
-			);
-			mountDashboard();
-			expect(getCurrentLocation().search).toBe('');
-			expect(
-				JSON.parse(
-					localStorage.getItem(LOCALSTORAGE.METRICS_TIME_IN_DURATION) ?? '{}',
-				)[PATH],
-			).toBe(saved);
-			expect(mockSelectorMount.mock.calls[0][0]).toBe('');
-		},
-	);
-
-	it('does not use preferences from another dashboard', () => {
-		localStorage.setItem(
-			LOCALSTORAGE.METRICS_TIME_IN_DURATION,
-			JSON.stringify({ '/dashboard/other': '1d' }),
-		);
-		mountDashboard();
-		expect(getCurrentLocation().search).toBe('?relativeTime=1h');
-	});
-
-	it.each([
-		['1h30m', '90m'],
-		['120m', '2h'],
-		['14d', '2w'],
-		['1y', '365d'],
-		['15s', '1m'],
-		['90s', '2m'],
-		['500ms', '1m'],
-	])('opens a %s default as %s, in whole minutes', (duration, relativeTime) => {
-		mountDashboard('', duration);
-		expect(getCurrentLocation().search).toBe(`?relativeTime=${relativeTime}`);
-	});
-
-	it.each(['', '0m', '0s', 'invalid'])(
-		'keeps the normal selector flow for unusable default %s',
-		(duration) => {
-			mountDashboard('', duration);
-			expect(getCurrentLocation().search).toBe('');
-			expect(screen.getByTestId('time-selector')).toBeInTheDocument();
-		},
-	);
-
-	it('does not reset a current selection when settings refetch', () => {
-		const { update } = mountDashboard();
-		act(() => navigate(`${PATH}?relativeTime=15m`, { replace: true }));
-		update(dashboard('1w'));
-		expect(getCurrentLocation().search).toBe('?relativeTime=15m');
-		expect(mockUpdateTimeInterval).not.toHaveBeenCalled();
-	});
-
-	it('moves a viewer still on the old default to a changed one', () => {
-		const { update } = mountDashboard();
-		update(dashboard('1d'));
-		expect(getCurrentLocation().search).toBe('?relativeTime=1d');
-		expect(mockUpdateTimeInterval).toHaveBeenCalledWith('1d');
-	});
-
-	it('moves a viewer to 30 minutes when the default is cleared', () => {
-		const { update } = mountDashboard();
-		update(dashboard(''));
-		expect(getCurrentLocation().search).toBe('?relativeTime=30m');
-		expect(mockUpdateTimeInterval).toHaveBeenCalledWith('30m');
-	});
-
-	it('moves a viewer off 30 minutes when a default is first set', () => {
-		const { update } = mountDashboard('?relativeTime=30m', '');
-		update(dashboard('1d'));
-		expect(getCurrentLocation().search).toBe('?relativeTime=1d');
-		expect(mockUpdateTimeInterval).toHaveBeenCalledWith('1d');
-	});
-
-	it('keeps the time a viewer picked when the default changes', () => {
-		const { update } = mountDashboard();
-		localStorage.setItem(
-			LOCALSTORAGE.METRICS_TIME_IN_DURATION,
-			JSON.stringify({ [PATH]: '1h' }),
-		);
-		update(dashboard('1d'));
-		expect(getCurrentLocation().search).toBe('?relativeTime=1h');
-		expect(mockUpdateTimeInterval).not.toHaveBeenCalled();
-	});
-
-	it('initializes a different dashboard before mounting its children', () => {
-		const { update } = mountDashboard();
-		mockSelectorMount.mockClear();
-		mockPanelMount.mockClear();
-		act(() => {
-			navigate('/dashboard/other');
-			update(dashboard('1w', 'other'));
-		});
-		expect(getCurrentLocation().search).toBe('?relativeTime=1w');
-		expect(mockSelectorMount).toHaveBeenCalled();
-		expect(mockPanelMount).toHaveBeenCalled();
-		expect(
-			mockSelectorMount.mock.calls.every(
-				([search]) => new URLSearchParams(search).get('relativeTime') === '1w',
-			),
-		).toBe(true);
-		expect(
-			mockPanelMount.mock.calls.every(
-				([search]) => new URLSearchParams(search).get('relativeTime') === '1w',
-			),
-		).toBe(true);
-	});
-});

frontend/src/pages/DashboardPage/DashboardContainer/hooks/useDashboardDefaultTime.ts

@@ -1,77 +0,0 @@
-import { useEffect, useRef, useState } from 'react';
-// eslint-disable-next-line no-restricted-imports -- TODO: migrate global time dispatch off redux
-import { useDispatch } from 'react-redux';
-import { QueryParams } from 'constants/query';
-import { getDefaultOption } from 'container/TopNav/DateTimeSelectionV2/constants';
-import type { Time } from 'container/TopNav/DateTimeSelectionV2/types';
-import { useAppLocation } from 'lib/router/useAppLocation';
-import { useAppNavigate } from 'lib/router/useAppNavigate';
-import { UpdateTimeInterval } from 'store/actions';
-import { getUnstableCurrentSearchParams } from 'utils/getUnstableCurrentSearchParams';
-import { hasPersistedTimeForRoute } from 'utils/metricsTimeStorageUtils';
-
-import { toPickerRelativeTime } from '../utils/dashboardDuration';
-
-/**
- * Prepares the dashboard URL before its time selector and panels mount, and
- * moves a viewer still on the previous default to a changed one.
- */
-export function useDashboardDefaultTime(
-	dashboardId: string,
-	duration: string | undefined,
-): boolean {
-	const { pathname } = useAppLocation();
-	const navigate = useAppNavigate();
-	const dispatch = useDispatch();
-	const previousDuration = useRef(duration);
-	const [initialized, setInitialized] = useState<{
-		dashboardId: string;
-		pathname: string;
-	}>();
-	const isInitialized =
-		initialized?.dashboardId === dashboardId && initialized.pathname === pathname;
-
-	useEffect(() => {
-		if (isInitialized) {
-			return;
-		}
-		const params = getUnstableCurrentSearchParams();
-		const hasUrlTime = [
-			QueryParams.relativeTime,
-			QueryParams.startTime,
-			QueryParams.endTime,
-		].some((key) => params.has(key));
-		const relativeTime = toPickerRelativeTime(duration);
-
-		if (!hasUrlTime && !hasPersistedTimeForRoute(pathname) && relativeTime) {
-			params.set(QueryParams.relativeTime, relativeTime);
-			navigate(`${pathname}?${params.toString()}`, { replace: true });
-		}
-		setInitialized({ dashboardId, pathname });
-	}, [dashboardId, duration, pathname, isInitialized, navigate]);
-
-	useEffect(() => {
-		const previous = previousDuration.current;
-		previousDuration.current = duration;
-		if (!isInitialized || previous === duration) {
-			return;
-		}
-		const params = getUnstableCurrentSearchParams();
-		const routeDefault = getDefaultOption(pathname);
-		const isOnPreviousDefault =
-			params.get(QueryParams.relativeTime) ===
-				(toPickerRelativeTime(previous) ?? routeDefault) &&
-			!params.has(QueryParams.startTime) &&
-			!params.has(QueryParams.endTime) &&
-			!hasPersistedTimeForRoute(pathname);
-		if (!isOnPreviousDefault) {
-			return;
-		}
-		const next = toPickerRelativeTime(duration) ?? routeDefault;
-		params.set(QueryParams.relativeTime, next);
-		navigate(`${pathname}?${params.toString()}`, { replace: true });
-		dispatch(UpdateTimeInterval(next as Time));
-	}, [duration, isInitialized, pathname, navigate, dispatch]);
-
-	return isInitialized;
-}

frontend/src/pages/DashboardPage/DashboardContainer/index.tsx

@@ -14,7 +14,6 @@ import DashboardPageHeader from './components/DashboardPageHeader/DashboardPageH
 import LockedIndicator from './components/LockedIndicator/LockedIndicator';
 import DashboardChangedDialog from './components/DashboardChangedDialog/DashboardChangedDialog';
 import { useDashboardStaleCheck } from './hooks/useDashboardStaleCheck';
-import { useDashboardDefaultTime } from './hooks/useDashboardDefaultTime';
 import { resolveDashboardImage } from 'pages/DashboardPage/DashboardContainer/dashboardIcons';
 
 interface DashboardContainerProps {
@@ -34,9 +33,8 @@ function DashboardContainer({
 	dashboard,
 	refetch,
 	canEditDashboardOverride,
-}: DashboardContainerProps): JSX.Element | null {
+}: DashboardContainerProps): JSX.Element {
 	const spec = dashboard.spec;
-	const isTimeInitialized = useDashboardDefaultTime(dashboard.id, spec.duration);
 	const image = resolveDashboardImage(dashboard.image);
 	const name = spec.display.name;
 
@@ -70,10 +68,6 @@ function DashboardContainer({
 
 	const staleCheck = useDashboardStaleCheck(dashboard, refetch);
 
-	if (!isTimeInitialized) {
-		return null;
-	}
-
 	// In full screen show only the sections and panels — the header/toolbar chrome
 	// is hidden for a clean presentation view (exit with Esc).
 	return (

frontend/src/pages/DashboardPage/DashboardContainer/utils/dashboardDuration.ts

@@ -1,41 +0,0 @@
-import {
-	PROMETHEUS_DURATION_UNIT_MS,
-	prometheusDurationToMs,
-} from 'utils/prometheusDuration';
-
-const MINUTE_MS = PROMETHEUS_DURATION_UNIT_MS.m;
-const PICKER_UNITS: { unit: string; minutes: number }[] = [
-	{ unit: 'w', minutes: 10_080 },
-	{ unit: 'd', minutes: 1_440 },
-	{ unit: 'h', minutes: 60 },
-];
-
-/**
- * The time picker's relative time for a dashboard duration, or null when the
- * duration is empty, zero or not a duration. The picker has no seconds, so the
- * window is rounded up to whole minutes: `1h30m` opens as `90m`, `15s` as `1m`.
- */
-export function toPickerRelativeTime(
-	duration: string | undefined,
-): string | null {
-	const totalMs = duration ? prometheusDurationToMs(duration) : null;
-	if (!totalMs) {
-		return null;
-	}
-	const minutes = Math.ceil(totalMs / MINUTE_MS);
-	const largest = PICKER_UNITS.find((option) => minutes % option.minutes === 0);
-	return largest ? `${minutes / largest.minutes}${largest.unit}` : `${minutes}m`;
-}
-
-/** Why a hand-written `spec.duration` can't be saved, or null when it can. */
-export function dashboardDurationError(duration: unknown): string | null {
-	if (duration === undefined || duration === null || duration === '') {
-		return null;
-	}
-	const totalMs =
-		typeof duration === 'string' ? prometheusDurationToMs(duration) : null;
-	if (!totalMs || totalMs % MINUTE_MS !== 0) {
-		return '"spec.duration" must be a whole number of minutes above zero, like 30m, 6h or 1d. The time picker has no seconds.';
-	}
-	return null;
-}

frontend/src/pages/DashboardPage/stories/DashboardPage.stories.mocks.tsx

@@ -547,18 +547,6 @@ export const openSettings = async (
 	return screen.findByRole('tabpanel');
 };
 
-export const clickWhenEnabled = async (testId: string): Promise<void> => {
-	await waitFor(
-		() =>
-			expect(screen.getByTestId(testId)).not.toHaveAttribute(
-				'aria-disabled',
-				'true',
-			),
-		PAGE_LOAD,
-	);
-	await userEvent.click(screen.getByTestId(testId));
-};
-
 export const variableRow = (name: string): Promise<HTMLElement> =>
 	screen.findByTestId(`variable-row-${name}`, {}, PAGE_LOAD);
 

frontend/src/pages/DashboardPage/stories/panels/Panels.stories.mocks.tsx

@@ -38,6 +38,7 @@ import {
 	PANEL_KINDS,
 	PANEL_RESULTS,
 	PANELS_DASHBOARD_ID,
+	PIE_SLICES,
 	SPAN_GAPS,
 	STACK_MODES,
 	TEXT_ALIGNS,
@@ -63,6 +64,7 @@ import type {
 	PanelKind,
 	PanelResult,
 	PanelUnit,
+	PieSlices,
 	SpanGaps,
 	TextSample,
 	YScale,
@@ -199,6 +201,13 @@ export const panelsMocks = defineStoryMocks({
 			value: 4,
 			max: MAX_SERIES,
 		}),
+		pieSlices: choiceControl<PieSlices>('Pie slices', {
+			group: DATA,
+			description:
+				'`even` steps down per service (Series sets how many); `long-tail` answers 24 services, the smallest 10 folding into Other.',
+			options: PIE_SLICES,
+			value: 'even',
+		}),
 		gaps: choiceControl<Gaps>('Gaps', {
 			group: DATA,
 			description:
@@ -267,6 +276,7 @@ export const panelsMocks = defineStoryMocks({
 						listRows: values.listRows,
 						listJsonBody: values.listJsonBody,
 						gaps: values.gaps,
+						pieSlices: values.pieSlices,
 					});
 				}),
 			),

frontend/src/pages/DashboardPage/stories/panels/Panels.stories.tsx

@@ -1,6 +1,5 @@
 import type { ComponentType } from 'react';
 import type { Meta, StoryObj } from '@storybook/react-vite';
-import { expect, within } from 'storybook/test';
 import {
 	DashboardtypesHeatmapYScaleDTO as HeatmapYScale,
 	DashboardtypesLegendPositionDTO as LegendPosition,
@@ -16,9 +15,13 @@ import type { PageStoryArgs } from '@/storybook/runtime/resolveStory';
 import DashboardPage from '../../DashboardPage';
 
 import { panelsMocks } from './Panels.stories.mocks';
-import { expectPanel } from './panelPlay/expectPanel';
-import { filterLegend, searchTable } from './panelPlay/interactions';
-import { walkListPages } from './panelPlay/list';
+import {
+	playLegendRight,
+	playListJsonBody,
+	playListPaginated,
+	playPanel,
+	playTableSearch,
+} from './panelPlay/plays';
 
 type PanelsArgs = PageStoryArgs<typeof panelsMocks>;
 
@@ -49,53 +52,49 @@ export default meta;
 
 type Story = StoryObj<PanelsArgs>;
 
-const play: Story['play'] = async ({ canvasElement, args }) => {
-	await expectPanel(canvasElement, args);
-};
-
 /** A time series panel: p99 latency, one line per service, with a bottom legend. */
-export const Default: Story = { play };
+export const Default: Story = { play: playPanel };
 
 /** One bar series per service over time, side by side. */
 export const Bar: Story = {
 	args: { kind: 'Bar' },
-	play,
+	play: playPanel,
 };
 
 /** The services' bars stacked on one another at every moment. */
 export const BarStacked: Story = {
 	args: { kind: 'Bar', stack: StackMode.normal },
-	play,
+	play: playPanel,
 };
 
 /** The services as filled areas, drawn independently. */
 export const Area: Story = {
 	args: { kind: 'Area' },
-	play,
+	play: playPanel,
 };
 
 /** The services' areas stacked on one another, each band filling to the one below. */
 export const AreaStacked: Story = {
 	args: { kind: 'Area', stack: StackMode.normal },
-	play,
+	play: playPanel,
 };
 
 /** The stacked areas rescaled so every moment sums to 100%, each band its service's share. */
 export const AreaPercent: Story = {
 	args: { kind: 'Area', stack: StackMode.percent },
-	play,
+	play: playPanel,
 };
 
 /** How the latency values distribute across buckets, one bar set per service. */
 export const Histogram: Story = {
 	args: { kind: 'Histogram' },
-	play,
+	play: playPanel,
 };
 
 /** The histogram binned 50 apart, every bin starting on a multiple of 50. */
 export const HistogramBucketWidth: Story = {
 	args: { kind: 'Histogram', bucketWidth: '50' },
-	play,
+	play: playPanel,
 };
 
 /**
@@ -104,25 +103,34 @@ export const HistogramBucketWidth: Story = {
  */
 export const Heatmap: Story = {
 	args: { kind: 'Heatmap' },
-	play,
+	play: playPanel,
 };
 
 /** The heatmap's bucket rows laid out on a log scale. */
 export const HeatmapLog: Story = {
 	args: { kind: 'Heatmap', heatmapScale: HeatmapYScale.log },
-	play,
+	play: playPanel,
 };
 
 /** The heatmap's colour bar pinned to a fixed 5–250 count range. */
 export const HeatmapCountRange: Story = {
 	args: { kind: 'Heatmap', heatmapCounts: 'fixed' },
-	play,
+	play: playPanel,
 };
 
 /** Each service's share of traffic as a donut, with the total in the middle. */
 export const Pie: Story = {
 	args: { kind: 'Pie' },
-	play,
+	play: playPanel,
+};
+
+/**
+ * 24 services of falling traffic: the smallest 10 fold into one grey "Other (10)" slice,
+ * which lists them on hover; click pins the list to drill into any of them.
+ */
+export const PieOther: Story = {
+	args: { kind: 'Pie', pieSlices: 'long-tail' },
+	play: playPanel,
 };
 
 /**
@@ -131,13 +139,13 @@ export const Pie: Story = {
  */
 export const Number: Story = {
 	args: { kind: 'Number', thresholds: true },
-	play,
+	play: playPanel,
 };
 
 /** The value's query matched nothing, which the Number panel draws as its own no-data state. */
 export const NumberNoData: Story = {
 	args: { kind: 'Number', result: 'empty' },
-	play,
+	play: playPanel,
 };
 
 /**
@@ -146,7 +154,7 @@ export const NumberNoData: Story = {
  */
 export const Table: Story = {
 	args: { kind: 'Table', thresholds: true, columnUnits: true },
-	play,
+	play: playPanel,
 };
 
 /**
@@ -155,16 +163,13 @@ export const Table: Story = {
  */
 export const TableSearch: Story = {
 	args: { kind: 'Table' },
-	play: async ({ canvasElement, args }): Promise<void> => {
-		await expectPanel(canvasElement, args);
-		await searchTable(canvasElement, args);
-	},
+	play: playTableSearch,
 };
 
 /** The latest log lines, newest first, on a single page. */
 export const List: Story = {
 	args: { kind: 'List' },
-	play,
+	play: playPanel,
 };
 
 /**
@@ -173,16 +178,7 @@ export const List: Story = {
  */
 export const ListJsonBody: Story = {
 	args: { kind: 'List', listJsonBody: true },
-	play: async ({ canvasElement, args }): Promise<void> => {
-		await expectPanel(canvasElement, args);
-		const [first, , third] = within(canvasElement)
-			.getByTestId('list-panel-renderer')
-			.querySelectorAll<HTMLElement>('tbody tr.ant-table-row');
-		await expect(within(first).getByText(/^log line 1:/)).toBeInTheDocument();
-		await expect(
-			within(third).getByText(/^\{"message":"log line 3:/),
-		).toBeInTheDocument();
-	},
+	play: playListJsonBody,
 };
 
 /**
@@ -191,28 +187,25 @@ export const ListJsonBody: Story = {
  */
 export const ListPaginated: Story = {
 	args: { kind: 'List', listRows: 60 },
-	play: async ({ canvasElement, args }): Promise<void> => {
-		await expectPanel(canvasElement, args);
-		await walkListPages(canvasElement, args);
-	},
+	play: playListPaginated,
 };
 
 /** A Markdown runbook: heading, list, link and code block. */
 export const Text: Story = {
 	args: { kind: 'Text' },
-	play,
+	play: playPanel,
 };
 
 /** The time series on a logarithmic y axis. */
 export const LogScale: Story = {
 	args: { yScale: 'log' },
-	play,
+	play: playPanel,
 };
 
 /** Dashed lines with a marker on every sample. */
 export const LineStyle: Story = {
 	args: { lineStyle: LineStyleDTO.dashed, showPoints: true },
-	play,
+	play: playPanel,
 };
 
 /**
@@ -221,7 +214,7 @@ export const LineStyle: Story = {
  */
 export const SpanGaps: Story = {
 	args: { gaps: 'hole', spanGaps: 'break-10m' },
-	play,
+	play: playPanel,
 };
 
 /**
@@ -230,26 +223,23 @@ export const SpanGaps: Story = {
  */
 export const LegendRight: Story = {
 	args: { legend: LegendPosition.right },
-	play: async ({ canvasElement, args }): Promise<void> => {
-		await expectPanel(canvasElement, args);
-		await filterLegend(canvasElement, args);
-	},
+	play: playLegendRight,
 };
 
 /** The dashed SLO line across the time series, with its label. */
 export const Thresholds: Story = {
 	args: { thresholds: true },
-	play,
+	play: playPanel,
 };
 
 /** The query ran and matched nothing, which the panel draws as its no-data state. */
 export const NoData: Story = {
 	args: { result: 'empty' },
-	play,
+	play: playPanel,
 };
 
 /** Data that came back with a warning, flagged in the panel header. */
 export const Warning: Story = {
 	args: { result: 'warning' },
-	play,
+	play: playPanel,
 };

frontend/src/pages/DashboardPage/stories/panels/__story_mockdata__/constants.ts

@@ -67,6 +67,11 @@ export const LINE_STYLES = Object.values(LineStyle);
 
 export const GAPS = ['none', 'hole'] as const;
 
+export const PIE_SLICES = ['even', 'long-tail'] as const;
+
+/** Slices `long-tail` answers with: 14 drawn, the other 10 grouped (the pie draws at most 15). */
+export const LONG_TAIL_SLICES = 24;
+
 export const SPAN_GAPS = ['bridge', 'break-10m'] as const;
 
 /** Points cut out of every series by `hole`: 12 of the 30, a gap past the 10m break. */

frontend/src/pages/DashboardPage/stories/panels/__story_mockdata__/panelResponses.ts

@@ -26,13 +26,14 @@ import {
 	HEATMAP_BUCKETS,
 	HEATMAP_COLUMNS,
 	HOLE,
+	LONG_TAIL_SLICES,
 	MAX_SERIES,
 	NUMBER_VALUE,
 	QUERY_NAME,
 	SERVICES,
 	TABLE_SECOND_COLUMN,
 } from './constants';
-import type { Gaps, PanelRequest, PanelResponseArgs } from './types';
+import type { Gaps, PanelRequest, PanelResponseArgs, PieSlices } from './types';
 
 export const serviceAt = (index: number): string =>
 	index < SERVICES.length
@@ -42,6 +43,14 @@ export const serviceAt = (index: number): string =>
 export const TABLE_VALUES = (count: number): number[] =>
 	Array.from({ length: count }, (_unused, index) => 3800 - index * 480);
 
+/** The pie's slice values: `even` steps down per series, `long-tail` falls off like a power law. */
+export const PIE_VALUES = (slices: PieSlices, count: number): number[] =>
+	slices === 'even'
+		? TABLE_VALUES(count)
+		: Array.from({ length: LONG_TAIL_SLICES }, (_unused, index) =>
+				Math.round(42000 / (index + 1) ** 1.35),
+			);
+
 const TABLE_SECOND_VALUES = (count: number): number[] =>
 	Array.from({ length: count }, (_unused, index) => 2000 + index * 600);
 
@@ -192,6 +201,7 @@ export const panelQueryResponse = ({
 	listRows,
 	listJsonBody,
 	gaps,
+	pieSlices,
 	window,
 	offset,
 	limit,
@@ -209,7 +219,10 @@ export const panelQueryResponse = ({
 			return queryRangeV5ScalarTableResponse({
 				groupBy: ['service.name'],
 				aggregations: [QUERY_NAME],
-				rows: TABLE_VALUES(series).map((value, index) => [serviceAt(index), value]),
+				rows: PIE_VALUES(pieSlices, series).map((value, index) => [
+					serviceAt(index),
+					value,
+				]),
 				warning,
 			});
 		case 'Table': {

frontend/src/pages/DashboardPage/stories/panels/__story_mockdata__/types.ts

@@ -20,6 +20,7 @@ import type {
 	HEATMAP_COUNT_RANGES,
 	PANEL_KINDS,
 	PANEL_RESULTS,
+	PIE_SLICES,
 	SPAN_GAPS,
 	TEXT_SAMPLES,
 	UNITS,
@@ -44,6 +45,8 @@ export type Gaps = (typeof GAPS)[number];
 
 export type SpanGaps = (typeof SPAN_GAPS)[number];
 
+export type PieSlices = (typeof PIE_SLICES)[number];
+
 /** The controls that shape the dashboard document. */
 export interface PanelArgs {
 	kind: PanelKind;
@@ -79,4 +82,5 @@ export interface PanelResponseArgs extends PanelRequest {
 	listRows: number;
 	listJsonBody: boolean;
 	gaps: Gaps;
+	pieSlices: PieSlices;
 }

frontend/src/pages/DashboardPage/stories/panels/panelPlay/plays.ts

@@ -0,0 +1,42 @@
+import { expect, within } from 'storybook/test';
+
+import type { PanelPlayArgs } from './args';
+import { expectPanel } from './expectPanel';
+import { filterLegend, searchTable } from './interactions';
+import { walkListPages } from './list';
+
+type PanelPlay = (context: {
+	canvasElement: HTMLElement;
+	args: PanelPlayArgs;
+}) => Promise<void>;
+
+/** Asserts what the panel kind draws. */
+export const playPanel: PanelPlay = async ({ canvasElement, args }) => {
+	await expectPanel(canvasElement, args);
+};
+
+export const playTableSearch: PanelPlay = async ({ canvasElement, args }) => {
+	await expectPanel(canvasElement, args);
+	await searchTable(canvasElement, args);
+};
+
+export const playListJsonBody: PanelPlay = async ({ canvasElement, args }) => {
+	await expectPanel(canvasElement, args);
+	const [first, , third] = within(canvasElement)
+		.getByTestId('list-panel-renderer')
+		.querySelectorAll<HTMLElement>('tbody tr.ant-table-row');
+	await expect(within(first).getByText(/^log line 1:/)).toBeInTheDocument();
+	await expect(
+		within(third).getByText(/^\{"message":"log line 3:/),
+	).toBeInTheDocument();
+};
+
+export const playListPaginated: PanelPlay = async ({ canvasElement, args }) => {
+	await expectPanel(canvasElement, args);
+	await walkListPages(canvasElement, args);
+};
+
+export const playLegendRight: PanelPlay = async ({ canvasElement, args }) => {
+	await expectPanel(canvasElement, args);
+	await filterLegend(canvasElement, args);
+};

frontend/src/pages/DashboardPage/stories/panels/panelPlay/scalars.ts

@@ -6,12 +6,16 @@ import {
 	TABLE_THRESHOLD_VALUE,
 } from '../__story_mockdata__/constants';
 import {
+	PIE_VALUES,
 	serviceIndex,
 	TABLE_VALUES,
 } from '../__story_mockdata__/panelResponses';
 
 import { PANEL_LOAD, type PanelPlayArgs } from './args';
 
+// `long-tail` draws 14 slices and folds the other 10 into Other.
+const LONG_TAIL_KEPT = 14;
+
 export const expectPie = async (
 	root: HTMLElement,
 	args: PanelPlayArgs,
@@ -19,9 +23,18 @@ export const expectPie = async (
 	const chart = await within(root).findByTestId('pie-chart', {}, PANEL_LOAD);
 	// The legend's icons are SVGs too; the donut is the first one.
 	const donut = chart.querySelector('svg');
-	await expect(donut?.querySelectorAll('g > path')).toHaveLength(args.series);
+	const values = PIE_VALUES(args.pieSlices, args.series);
+	const isGrouped = args.pieSlices === 'long-tail';
+	await expect(donut?.querySelectorAll('g > path')).toHaveLength(
+		isGrouped ? LONG_TAIL_KEPT + 1 : values.length,
+	);
+	if (isGrouped) {
+		await expect(
+			within(chart).getByText(`Other (${values.length - LONG_TAIL_KEPT})`),
+		).toBeInTheDocument();
+	}
 	// The centre shows the slices' sum, formatted as the panel formats values.
-	const total = TABLE_VALUES(args.series).reduce((sum, value) => sum + value, 0);
+	const total = values.reduce((sum, value) => sum + value, 0);
 	await expect(
 		donut?.querySelector('text[text-anchor="middle"]')?.textContent,
 	).toBe(getYAxisFormattedValue(String(total), args.unit).replace(/\s+/g, ''));

frontend/src/pages/DashboardPage/stories/settings/Settings.stories.tsx

@@ -7,11 +7,7 @@ import { screen, userEvent, within } from 'storybook/test';
 import { storyMocks } from '@/storybook/controls/defineStoryMocks';
 import type { PageStoryArgs } from '@/storybook/runtime/resolveStory';
 
-import {
-	clickWhenEnabled,
-	dashboardMocks,
-	openSettings,
-} from '../DashboardPage.stories.mocks';
+import { dashboardMocks, openSettings } from '../DashboardPage.stories.mocks';
 
 import DashboardPage from '../../DashboardPage';
 
@@ -140,7 +136,7 @@ export const PublishedToast: Story = {
 	parameters: { allowConsoleErrors: true },
 	play: async ({ canvasElement, args }) => {
 		await openSettings(canvasElement, 'Publish');
-		await clickWhenEnabled('public-dashboard-publish');
+		await userEvent.click(await screen.findByTestId('public-dashboard-publish'));
 		if (args.publicWrite === 'success') {
 			await screen.findByText('Dashboard published successfully');
 		}
@@ -151,7 +147,7 @@ export const PublishedToast: Story = {
 export const PublicUpdatedToast: Story = {
 	play: async ({ canvasElement, args }) => {
 		await openSettings(canvasElement, 'Publish');
-		await clickWhenEnabled('public-dashboard-update');
+		await userEvent.click(await screen.findByTestId('public-dashboard-update'));
 		if (args.publicWrite === 'success') {
 			await screen.findByText('Public dashboard updated successfully');
 		}
@@ -162,7 +158,9 @@ export const PublicUpdatedToast: Story = {
 export const UnpublishedToast: Story = {
 	play: async ({ canvasElement, args }) => {
 		await openSettings(canvasElement, 'Publish');
-		await clickWhenEnabled('public-dashboard-unpublish');
+		await userEvent.click(
+			await screen.findByTestId('public-dashboard-unpublish'),
+		);
 		if (args.publicWrite === 'success') {
 			await screen.findByText('Dashboard unpublished successfully');
 		}

frontend/src/pages/DashboardsListPage/components/NewDashboardModal/ImportJsonPanel.tsx

@@ -17,7 +17,6 @@ import { DashboardListEvents } from 'pages/DashboardsListPage/constants/events';
 import APIError from 'types/api/error';
 
 import { isValidDashboardImage } from 'pages/DashboardPage/DashboardContainer/dashboardIcons';
-import { dashboardDurationError } from 'pages/DashboardPage/DashboardContainer/utils/dashboardDuration';
 
 import { normalizeToPostable } from './importUtils';
 import JsonEditor from './JsonEditor';
@@ -47,10 +46,10 @@ function ImportJsonPanel({ onClose }: Props): JSX.Element {
 		reader.onload = (event): void => {
 			try {
 				const target = event.target?.result;
-				if (typeof target !== 'string') {
+				if (!target) {
 					return;
 				}
-				const parsed = JSON.parse(target);
+				const parsed = JSON.parse(target.toString());
 				setEditorValue(JSON.stringify(parsed, null, 2));
 				setIsUploadError(false);
 			} catch {
@@ -64,7 +63,7 @@ function ImportJsonPanel({ onClose }: Props): JSX.Element {
 	const handleImport = async (): Promise<void> => {
 		try {
 			setIsCreating(true);
-			void logEvent('Dashboard List V2: Import and next clicked', {});
+			logEvent('Dashboard List V2: Import and next clicked', {});
 			const parsed = JSON.parse(editorValue) as Record<string, unknown>;
 			const payload = normalizeToPostable(parsed);
 			// Only an icon/logo path or a base64 image is a storable `image`; reject
@@ -79,15 +78,6 @@ function ImportJsonPanel({ onClose }: Props): JSX.Element {
 				);
 				return;
 			}
-			const durationError = dashboardDurationError(payload.spec?.duration);
-			if (durationError) {
-				setIsCreateError(true);
-				void logEvent(DashboardListEvents.ImportFailed, {
-					reason: 'invalid-duration',
-				});
-				toast.error(durationError);
-				return;
-			}
 			const response = await createDashboardV2(payload);
 			void logEvent(DashboardListEvents.DashboardCreated, { method: 'import' });
 			onClose();
@@ -139,7 +129,7 @@ function ImportJsonPanel({ onClose }: Props): JSX.Element {
 						prefix={<MonitorDot size={14} />}
 						testId="upload-json-file"
 						onClick={(): void => {
-							void logEvent('Dashboard List V2: Upload JSON file clicked', {});
+							logEvent('Dashboard List V2: Upload JSON file clicked', {});
 						}}
 					>
 						{t('upload_json_file')}

frontend/src/pages/TracesExplorer/__test__/TracesExplorer.test.tsx

@@ -168,12 +168,14 @@ describe('TracesExplorer -', () => {
 			),
 		);
 
-		const { getByText } = renderWithTracesExplorerRouter(<TracesExplorer />);
+		renderWithTracesExplorerRouter(<TracesExplorer />);
 
 		await screen.findByText(FILTER_SERVICE_NAME);
 
 		await screen.findByText('demo-app');
-		expect(getByText('options_menu.options')).toBeInTheDocument();
+		expect(
+			screen.getByTestId('periscope-btn-options-traces'),
+		).toBeInTheDocument();
 
 		// the list scrolls instead of paging
 		expect(screen.queryByTestId('pagination-page-size')).not.toBeInTheDocument();

frontend/src/providers/preferences/__tests__/PreferencesProvider.integration.test.tsx

@@ -1,6 +1,9 @@
 import { SavedviewtypesSourceDTO } from 'api/generated/services/sigNoz.schemas';
 import { TelemetryFieldKey } from 'api/v5/v5';
 import { LOCALSTORAGE } from 'constants/localStorage';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import ROUTES from 'constants/routes';
+import { TRACE_VIEW_DEFAULT_COLUMNS } from 'container/LLMObservability/Explorer/constants';
 import { LogViewMode, FontSize } from 'container/OptionsMenu/types';
 import {
 	defaultLogsSelectedColumns,
@@ -9,12 +12,15 @@ import {
 import { render, screen, userEvent } from 'tests/test-utils';
 
 import { usePreferenceContext } from '../context/PreferenceContextProvider';
-import { PreferenceSourcePage } from '../types';
+import { PanelColumns, PreferenceSourcePage } from '../types';
 
 const ROUTE_LOGS = '/logs';
 const ROUTE_TRACES = '/traces';
 const TESTID_LOGS = 'logs';
 const TESTID_TRACES = 'traces';
+const ROUTE_AI = '/ai-observability';
+const AI_DEFAULT_COUNT = String(TRACE_VIEW_DEFAULT_COLUMNS.length);
+const TESTID_AI = 'ai';
 
 type LogsLocalOptions = {
 	selectColumns?: TelemetryFieldKey[];
@@ -57,9 +63,9 @@ function Consumer({
 				type="button"
 				onClick={(): void => {
 					const newCols: TelemetryFieldKey[] =
-						sourcePage === SavedviewtypesSourceDTO.traces
-							? (defaultTraceSelectedColumns.slice(0, 1) as TelemetryFieldKey[])
-							: (defaultLogsSelectedColumns.slice(0, 1) as TelemetryFieldKey[]);
+						sourcePage === SavedviewtypesSourceDTO.logs
+							? (defaultLogsSelectedColumns.slice(0, 1) as TelemetryFieldKey[])
+							: (defaultTraceSelectedColumns.slice(0, 1) as TelemetryFieldKey[]);
 					slice.updateColumns(newCols);
 				}}
 			>
@@ -436,4 +442,226 @@ describe('PreferencesProvider integration', () => {
 			}
 		});
 	});
+
+	describe('AI observability traces', () => {
+		const renderAiConsumer = (): void => {
+			render(
+				<Consumer
+					sourcePage={SavedviewtypesSourceDTO.ai_observability}
+					testIdPrefix={TESTID_AI}
+				/>,
+				undefined,
+				{ initialRoute: ROUTE_AI },
+			);
+		};
+
+		it('starts with the default trace view columns', () => {
+			renderAiConsumer();
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent(
+				AI_DEFAULT_COUNT,
+			);
+		});
+
+		it('loads its own localStorage, not the traces list one', () => {
+			setLocalStorageJSON(LOCALSTORAGE.TRACES_LIST_OPTIONS, {
+				selectColumns: [{ name: 'traces.list.col' }],
+			});
+			setLocalStorageJSON(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS, {
+				[PANEL_TYPES.TRACE]: [{ name: 'ai.col.a' }, { name: 'ai.col.b' }],
+			});
+
+			renderAiConsumer();
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent('3');
+		});
+
+		const URL_COLUMNS = [{ name: 'ai.url.a' }, { name: 'ai.url.b' }];
+
+		const renderAtUrl = (
+			pathname: string,
+			params: Record<string, unknown>,
+			renderConsumer: () => void,
+		): void => {
+			const search = new URLSearchParams(
+				Object.entries(params).map(([key, value]) => [key, JSON.stringify(value)]),
+			).toString();
+			const originalLocation = window.location;
+			Object.defineProperty(window, 'location', {
+				writable: true,
+				value: { ...originalLocation, pathname, search: `?${search}` },
+			});
+
+			renderConsumer();
+
+			Object.defineProperty(window, 'location', {
+				writable: true,
+				value: originalLocation,
+			});
+		};
+
+		const renderAiAtUrl = (params: Record<string, unknown>): void =>
+			renderAtUrl(ROUTES.AI_OBSERVABILITY_EXPLORER, params, renderAiConsumer);
+
+		it('ignores the url options on other explorers', () => {
+			renderAtUrl(
+				ROUTE_TRACES,
+				{ options: { selectColumns: URL_COLUMNS } },
+				renderAiConsumer,
+			);
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent(
+				AI_DEFAULT_COUNT,
+			);
+		});
+
+		it('loads the url columns for the panel in panelTypes', () => {
+			renderAiAtUrl({
+				options: { selectColumns: URL_COLUMNS },
+				panelTypes: PANEL_TYPES.TRACE,
+			});
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent('3');
+		});
+
+		it('files the url columns under the panel in panelTypes', () => {
+			renderAiAtUrl({
+				options: { selectColumns: URL_COLUMNS },
+				panelTypes: PANEL_TYPES.LIST,
+			});
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent(
+				AI_DEFAULT_COUNT,
+			);
+		});
+
+		it('prefers its localStorage over the url options', () => {
+			setLocalStorageJSON(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS, {
+				[PANEL_TYPES.TRACE]: [{ name: 'ai.local.col' }],
+			});
+
+			renderAiAtUrl({
+				options: { selectColumns: URL_COLUMNS },
+				panelTypes: PANEL_TYPES.TRACE,
+			});
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent('2');
+		});
+
+		it('keeps its url columns out of the traces slice', () => {
+			renderAtUrl(
+				ROUTES.AI_OBSERVABILITY_EXPLORER,
+				{
+					options: { selectColumns: URL_COLUMNS },
+					panelTypes: PANEL_TYPES.TRACE,
+				},
+				(): void => {
+					render(
+						<Consumer
+							sourcePage={SavedviewtypesSourceDTO.traces}
+							testIdPrefix={TESTID_TRACES}
+						/>,
+						undefined,
+						{ initialRoute: ROUTE_AI },
+					);
+				},
+			);
+
+			expect(screen.getByTestId('traces-columns-len')).toHaveTextContent(
+				String(defaultTraceSelectedColumns.length),
+			);
+		});
+
+		it('drops stored columns without a name or from another signal', () => {
+			setLocalStorageJSON(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS, {
+				[PANEL_TYPES.TRACE]: [
+					{ name: 'ai.col.a' },
+					{ name: 'logs.col', signal: 'logs' },
+					{ key: 'no.name' },
+					{},
+					'not-a-column',
+				],
+			});
+
+			renderAiConsumer();
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent('2');
+		});
+
+		it('ignores a stored panel that is not a list', () => {
+			setLocalStorageJSON(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS, {
+				[PANEL_TYPES.TRACE]: 'ai.col.a',
+			});
+
+			renderAiConsumer();
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent(
+				AI_DEFAULT_COUNT,
+			);
+		});
+
+		it('falls back to the url options when every stored column is invalid', () => {
+			setLocalStorageJSON(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS, {
+				[PANEL_TYPES.TRACE]: [{ name: 'logs.col', signal: 'logs' }],
+			});
+
+			renderAiAtUrl({
+				options: { selectColumns: URL_COLUMNS },
+				panelTypes: PANEL_TYPES.TRACE,
+			});
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent('3');
+		});
+
+		it('loads the columns of the panel open in the url', () => {
+			setLocalStorageJSON(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS, {
+				[PANEL_TYPES.TRACE]: [{ name: 'ai.trace.a' }, { name: 'ai.trace.b' }],
+				[PANEL_TYPES.LIST]: [{ name: 'ai.list.col' }],
+			});
+
+			render(
+				<Consumer
+					sourcePage={SavedviewtypesSourceDTO.ai_observability}
+					testIdPrefix={TESTID_AI}
+				/>,
+				undefined,
+				{
+					initialRoute: `${ROUTE_AI}?panelTypes=${encodeURIComponent(
+						JSON.stringify(PANEL_TYPES.LIST),
+					)}`,
+				},
+			);
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent('1');
+		});
+
+		it('keeps each panel apart in its localStorage', () => {
+			setLocalStorageJSON(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS, {
+				[PANEL_TYPES.LIST]: [{ name: 'ai.list.col' }],
+			});
+
+			renderAiConsumer();
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent(
+				AI_DEFAULT_COUNT,
+			);
+		});
+
+		it('updateColumns writes its own localStorage key in direct mode', async () => {
+			const user = userEvent.setup({ pointerEventsCheck: 0 });
+			renderAiConsumer();
+
+			await user.click(screen.getByTestId('ai-update-columns'));
+
+			expect(screen.getByTestId('ai-columns-len')).toHaveTextContent('2');
+			expect(
+				getLocalStorageJSON<PanelColumns>(
+					LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS,
+				)?.[PANEL_TYPES.TRACE],
+			).toHaveLength(1);
+			expect(
+				getLocalStorageJSON<TracesLocalOptions>(LOCALSTORAGE.TRACES_LIST_OPTIONS),
+			).toBeNull();
+		});
+	});
 });

frontend/src/providers/preferences/__tests__/aiObservabilityUpdaterConfig.test.ts

@@ -0,0 +1,41 @@
+import { TelemetryFieldKey } from 'api/v5/v5';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+
+import getAiObservabilityUpdaterConfig from '../configs/aiObservabilityUpdaterConfig';
+import { PreferenceMode } from '../types';
+
+const columns = [{ name: 'total_tokens' }] as TelemetryFieldKey[];
+
+describe('aiObservabilityUpdaterConfig in saved view mode', () => {
+	it('stores the columns under the open panel', () => {
+		const setSavedViewPreferences = jest.fn();
+		const { updateColumns } = getAiObservabilityUpdaterConfig(
+			jest.fn(),
+			setSavedViewPreferences,
+			PANEL_TYPES.TRACE,
+		);
+
+		updateColumns(columns, PreferenceMode.SAVED_VIEW);
+
+		expect(setSavedViewPreferences).toHaveBeenCalledWith({
+			columns,
+			panelType: PANEL_TYPES.TRACE,
+		});
+	});
+
+	it('stores the columns under the given panel', () => {
+		const setSavedViewPreferences = jest.fn();
+		const { updateColumns } = getAiObservabilityUpdaterConfig(
+			jest.fn(),
+			setSavedViewPreferences,
+			PANEL_TYPES.LIST,
+		);
+
+		updateColumns(columns, PreferenceMode.SAVED_VIEW, PANEL_TYPES.TRACE);
+
+		expect(setSavedViewPreferences).toHaveBeenCalledWith({
+			columns,
+			panelType: PANEL_TYPES.TRACE,
+		});
+	});
+});

frontend/src/providers/preferences/__tests__/usePreferenceSync.test.tsx

@@ -1,8 +1,11 @@
 import { useGetSavedView } from 'api/generated/services/saved-view';
 import {
+	SavedviewtypesPanelTypeDTO,
 	SavedviewtypesSavedViewDTO,
 	SavedviewtypesSourceDTO,
 } from 'api/generated/services/sigNoz.schemas';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import { TRACE_VIEW_DEFAULT_COLUMNS } from 'container/LLMObservability/Explorer/constants';
 import {
 	defaultLogsSelectedColumns,
 	defaultTraceSelectedColumns,
@@ -197,6 +200,64 @@ describe('usePreferenceSync in saved view mode', () => {
 		);
 	});
 
+	it('adds trace_id to AI trace selectedFields and uses the defaults when absent', () => {
+		mockViews([
+			makeView('ai-with-fields', SavedviewtypesSourceDTO.ai_observability, {
+				panelType: SavedviewtypesPanelTypeDTO.trace,
+				selectedFields: [{ name: 'total_tokens' }],
+			}),
+			makeView('ai-without-fields', SavedviewtypesSourceDTO.ai_observability, {
+				panelType: SavedviewtypesPanelTypeDTO.trace,
+			}),
+		]);
+
+		const withFields = renderHook(() =>
+			usePreferenceSync({
+				mode: PreferenceMode.SAVED_VIEW,
+				sourcePage: SavedviewtypesSourceDTO.ai_observability,
+				savedViewId: 'ai-with-fields',
+			}),
+		);
+		const withoutFields = renderHook(() =>
+			usePreferenceSync({
+				mode: PreferenceMode.SAVED_VIEW,
+				sourcePage: SavedviewtypesSourceDTO.ai_observability,
+				savedViewId: 'ai-without-fields',
+			}),
+		);
+
+		expect(withFields.result.current.preferences).toStrictEqual({
+			columns: [{ name: 'trace_id' }, { name: 'total_tokens' }],
+			panelType: PANEL_TYPES.TRACE,
+		});
+		expect(withoutFields.result.current.preferences).toStrictEqual({
+			columns: TRACE_VIEW_DEFAULT_COLUMNS,
+			panelType: PANEL_TYPES.TRACE,
+		});
+	});
+
+	it('gives the open panel its defaults when the AI view was saved on another panel', () => {
+		mockViews([
+			makeView('ai-graph', SavedviewtypesSourceDTO.ai_observability, {
+				panelType: SavedviewtypesPanelTypeDTO.graph,
+			}),
+		]);
+
+		const { result } = renderHook(() =>
+			usePreferenceSync({
+				mode: PreferenceMode.SAVED_VIEW,
+				sourcePage: SavedviewtypesSourceDTO.ai_observability,
+				panelType: PANEL_TYPES.TRACE,
+				savedViewId: 'ai-graph',
+			}),
+		);
+
+		expect(result.current.preferences).toStrictEqual({
+			columns: TRACE_VIEW_DEFAULT_COLUMNS,
+			panelType: PANEL_TYPES.TRACE,
+		});
+	});
+
 	it('uses defaults while the saved view is not loaded', () => {
 		mockViews([makeView('other', SavedviewtypesSourceDTO.logs, {})]);
 
@@ -212,4 +273,21 @@ describe('usePreferenceSync in saved view mode', () => {
 			ensureLogsRequiredColumns(defaultLogsSelectedColumns),
 		);
 	});
+	it('uses the AI trace defaults while the saved view is not loaded', () => {
+		mockViews([]);
+
+		const { result } = renderHook(() =>
+			usePreferenceSync({
+				mode: PreferenceMode.SAVED_VIEW,
+				sourcePage: SavedviewtypesSourceDTO.ai_observability,
+				panelType: PANEL_TYPES.TRACE,
+				savedViewId: 'missing',
+			}),
+		);
+
+		expect(result.current.preferences).toStrictEqual({
+			columns: TRACE_VIEW_DEFAULT_COLUMNS,
+			panelType: PANEL_TYPES.TRACE,
+		});
+	});
 });

frontend/src/providers/preferences/__tests__/usePreferenceUpdater.test.tsx

@@ -114,6 +114,7 @@ describe('usePreferenceUpdater', () => {
 		expect(mockLogsUpdateColumns).toHaveBeenCalledWith(
 			newColumns,
 			PreferenceMode.DIRECT,
+			undefined,
 		);
 		expect(mockTracesUpdateColumns).not.toHaveBeenCalled();
 		expect(setReSync).toHaveBeenCalledWith(true);
@@ -177,6 +178,7 @@ describe('usePreferenceUpdater', () => {
 		expect(mockTracesUpdateColumns).toHaveBeenCalledWith(
 			newColumns,
 			PreferenceMode.DIRECT,
+			undefined,
 		);
 		expect(mockLogsUpdateColumns).not.toHaveBeenCalled();
 		expect(setReSync).toHaveBeenCalledWith(true);

frontend/src/providers/preferences/__tests__/utils.test.ts

@@ -1,20 +1,47 @@
 import { SavedviewtypesSourceDTO } from 'api/generated/services/sigNoz.schemas';
+import { PANEL_TYPES } from 'constants/queryBuilder';
 
-import { isPreferenceSourcePage } from '../utils';
+import { hasPreferences, isPreferenceSourcePage } from '../utils';
 
 describe('isPreferenceSourcePage', () => {
-	it.each([SavedviewtypesSourceDTO.logs, SavedviewtypesSourceDTO.traces])(
-		'is true for %s',
+	it.each([
+		SavedviewtypesSourceDTO.logs,
+		SavedviewtypesSourceDTO.traces,
+		SavedviewtypesSourceDTO.ai_observability,
+	])('is true for %s', (source) => {
+		expect(isPreferenceSourcePage(source)).toBe(true);
+	});
+
+	it.each([SavedviewtypesSourceDTO.metrics, SavedviewtypesSourceDTO.meter])(
+		'is false for %s',
 		(source) => {
-			expect(isPreferenceSourcePage(source)).toBe(true);
+			expect(isPreferenceSourcePage(source)).toBe(false);
 		},
 	);
+});
 
-	it.each([
-		SavedviewtypesSourceDTO.metrics,
-		SavedviewtypesSourceDTO.meter,
-		SavedviewtypesSourceDTO.ai_observability,
-	])('is false for %s', (source) => {
-		expect(isPreferenceSourcePage(source)).toBe(false);
+describe('hasPreferences', () => {
+	it('is true for every panel of the logs and traces explorers', () => {
+		expect(
+			hasPreferences(SavedviewtypesSourceDTO.traces, PANEL_TYPES.TRACE),
+		).toBe(true);
+		expect(hasPreferences(SavedviewtypesSourceDTO.logs, PANEL_TYPES.LIST)).toBe(
+			true,
+		);
+	});
+
+	it('is true only for the AI observability panels that keep columns', () => {
+		expect(
+			hasPreferences(SavedviewtypesSourceDTO.ai_observability, PANEL_TYPES.TRACE),
+		).toBe(true);
+		expect(
+			hasPreferences(SavedviewtypesSourceDTO.ai_observability, PANEL_TYPES.LIST),
+		).toBe(false);
+	});
+
+	it('is false for source pages without a slice', () => {
+		expect(
+			hasPreferences(SavedviewtypesSourceDTO.metrics, PANEL_TYPES.LIST),
+		).toBe(false);
 	});
 });

frontend/src/providers/preferences/configs/aiObservabilityLoaderConfig.ts

@@ -0,0 +1,101 @@
+import getLocalStorageKey from 'api/browser/localstorage/get';
+import { TelemetryFieldKey } from 'api/v5/v5';
+import { LOCALSTORAGE } from 'constants/localStorage';
+import { QueryParams } from 'constants/query';
+import { PANEL_TYPES } from 'constants/queryBuilder';
+import {
+	DEFAULT_PANEL_TYPE,
+	TRACE_VIEW_DEFAULT_COLUMNS,
+} from 'container/LLMObservability/Explorer/constants';
+
+import { PanelColumns } from '../types';
+import { isAiObservabilityExplorerRoute } from '../utils';
+
+/**
+ * Validates if a column is valid for the AI observability explorer
+ * Needs a name; a column from another signal would fail the trace query
+ */
+const isValidAiColumn = (column: unknown): column is TelemetryFieldKey => {
+	if (!column || typeof column !== 'object') {
+		return false;
+	}
+	const { name, signal } = column as { name?: unknown; signal?: unknown };
+	return (
+		typeof name === 'string' && name !== '' && (!signal || signal === 'traces')
+	);
+};
+
+// Keeps the valid columns of each panel; a panel left empty falls back to the
+// defaults, like one that was never stored.
+const toPanels = (value: unknown): PanelColumns => {
+	if (!value || typeof value !== 'object' || Array.isArray(value)) {
+		return {};
+	}
+	return Object.entries(value).reduce<PanelColumns>(
+		(panels, [panelType, columns]) => {
+			if (!Array.isArray(columns)) {
+				return panels;
+			}
+			const validColumns = columns.filter(isValidAiColumn);
+			return validColumns.length
+				? { ...panels, [panelType as PANEL_TYPES]: validColumns }
+				: panels;
+		},
+		{},
+	);
+};
+
+// Stored as { [panelType]: columns }.
+export const readStoredPanels = (): PanelColumns => {
+	try {
+		return toPanels(
+			JSON.parse(
+				getLocalStorageKey(LOCALSTORAGE.AI_OBSERVABILITY_PANEL_COLUMNS) || '{}',
+			),
+		);
+	} catch {
+		return {};
+	}
+};
+
+// The url keeps the open panel's columns in `options.selectColumns`, and
+// `panelTypes` says which panel they belong to.
+const readUrlPanels = (): PanelColumns => {
+	if (!isAiObservabilityExplorerRoute()) {
+		return {};
+	}
+	const urlParams = new URLSearchParams(window.location.search);
+	try {
+		const options = JSON.parse(urlParams.get('options') || '{}');
+		const panelTypeParam = urlParams.get(QueryParams.panelTypes);
+		const panelType: PANEL_TYPES = panelTypeParam
+			? JSON.parse(panelTypeParam)
+			: DEFAULT_PANEL_TYPE;
+		return toPanels({ [panelType]: options?.selectColumns });
+	} catch {
+		return {};
+	}
+};
+
+type AiObservabilityLoaderConfig = {
+	local: () => { columns: TelemetryFieldKey[] };
+	url: () => { columns: TelemetryFieldKey[] };
+	default: () => { columns: TelemetryFieldKey[] };
+	priority: readonly ['local', 'url', 'default'];
+};
+
+// --- AI OBSERVABILITY preferences loader config ---
+// Each panel keeps its own columns, so the config is built for one panel.
+const getAiObservabilityLoaderConfig = (
+	panelType: PANEL_TYPES,
+): AiObservabilityLoaderConfig => ({
+	local: () => ({ columns: readStoredPanels()[panelType] ?? [] }),
+	url: () => ({ columns: readUrlPanels()[panelType] ?? [] }),
+	// Only the trace panel keeps columns today.
+	default: () => ({
+		columns: panelType === PANEL_TYPES.TRACE ? TRACE_VIEW_DEFAULT_COLUMNS : [],
+	}),
+	priority: ['local', 'url', 'default'] as const,
+});
+
+export default getAiObservabilityLoaderConfig;